Some achievement descriptions reveal mission names, optional objectives, and a few story-adjacent discoveries.
Fast answer
The answer before the background
Begin on Normal and play the first missions as tutorials for squad control, objective timing, and resource management. Before each operation, read the objective, inspect the enemy information in the Database, and bring three squads that cover frontline survival, ranged damage, and a specialist role. Capture or protect important points before chasing optional targets, keep heroes near the fight without exposing them first, and save Special Weapons for enemy waves or objectives rather than opening skirmishes. After a failed mission, change one thing: squad composition, route, upgrade choice, or timing. Progress through the campaign, complete worthwhile Special Operations, and use the Holodeck later for achievements and higher-difficulty clears.
START HERE
A reliable opening plan
Choose Normal unless you already have strong real-time strategy experience. Casual is useful for learning controls, while Veteran is better treated as a later challenge because it also matters for the Veteran achievement. Impossible is not an early-game option: Ironhide states that it unlocks after completing the campaign on any difficulty.
On the map, inspect the mission before launching. Read the objective wording carefully because an escort, rescue, defense, or destruction mission rewards a different approach. Then open the Database and check the relevant faction or enemy entries. The Database can be filtered by Federation, Crimson Vultures, Dark Empyreans, Raads, or miscellaneous entries.
Take three squads with different jobs. A practical beginner arrangement is one durable frontline group, one ranged or specialist damage group, and one flexible group that can answer the mission's main threat. Do not assume the highest damage lineup is best: a force that cannot hold ground, protect an escort, or survive a counterattack will lose more time than it saves.
At the start, move as a group and secure the first safe position before pushing deep into unexplored territory. Use the opening minutes to identify enemy approach routes, resource points, and defensive objectives. Keep a hero behind or beside the main force until you know where the next attack will come from. Heroes are valuable force multipliers, but sending one alone into unknown terrain turns their abilities into a rescue problem.
- Pause mentally between engagements and decide where the next fight should happen.
- Focus fire on the most dangerous enemy instead of splitting every squad across several targets.
- Use Special Weapons to solve a clear problem, such as a dense wave, a blocked route, or an emergency defense.
- If a mission fails, replay it with one deliberate change rather than replacing the entire strategy.
| Mission problem | Beginner response | Common error |
|---|---|---|
| Large enemy wave | Hold a narrow approach, keep squads together, and use a Special Weapon when several targets are committed. | Spending every ability on the first small group. |
| Escort or rescue | Advance in short stages and clear the route before the protected unit moves too far. | Rushing ahead and leaving the objective exposed. |
| Several objectives | Secure the safest objective first, then reposition before the next trigger. | Splitting into three weak groups too early. |
| Unknown enemy type | Check the Database and test its threat from a safe distance. | Repeating the same failed engagement without learning the counter. |
The official listing confirms that units have distinct roles and that squads can be combined, but it does not prescribe one universal team. Treat the lineup above as a safe starting pattern and adapt it to the mission.
PROGRESSION
What to upgrade and when
Permanent progression should come before convenience spending. The game includes a Tech Lab with 40 upgrades, heroes with levels, credits, and an Arsenal of mission-use items. Early upgrades that improve survivability, consistent damage, or the usefulness of your regularly deployed squads generally provide more value than buying a large stock of one emergency item.
Do not spread every upgrade across every unit immediately. Choose a small core of squads that you understand, then invest enough to make that core dependable. Once a mission introduces a new enemy, terrain type, or objective, broaden your upgrades to cover the new demand instead of trying to maximize one statistic.
Use Special Operations as development opportunities rather than mandatory detours. The official store listing describes 70 Special Operations that help improve Marine abilities, while Ironhide support says Spec-Ops appear randomly and can be played only once. Complete one when its objective is comfortable and its reward supports your current roster, but do not throw away a campaign run trying to force a perfect result.
The Arsenal lets you equip only three items at a time. Equip a small, repeatable toolkit instead of carrying three answers to the same problem. Buy or stock situational items after you know which missions are causing trouble. Credits also support achievement rewards and other progression, so avoid treating every difficult attempt as a reason to spend immediately.
Use the Holodeck after completing planets. It records the highest difficulty completed, lets you replay finished stages, and provides a controlled place to practice routes and achievement conditions. This is a better time to chase optional objectives than during your first blind clear.
- Prioritize upgrades that help the squads and heroes you actually field.
- Keep enough credits for permanent upgrades before purchasing consumables.
- Treat one-time Special Operations as valuable but optional until your core force is stable.
- Use Holodeck replays to turn failed missions into targeted practice sessions.
| Stage of progress | Main goal | Good habit |
|---|---|---|
| First missions | Learn movement, objectives, and squad roles. | Use Normal and read the Database. |
| Early campaign | Build a dependable three-squad core. | Invest in permanent upgrades before broad experimentation. |
| Mid campaign | Adapt to new factions and mission rules. | Change one squad or one upgrade when a counter appears. |
| Post-campaign | Raise difficulty and clean up achievements. | Replay through the Holodeck and attempt Veteran before Impossible. |
Ironhide's support documentation confirms that the Holodeck is for replaying completed stages at different difficulties and checking achievements, while the Arsenal allows three equipped items.
AVOID THESE
Common mistakes that slow beginners down
The biggest mistake is treating every mission like a simple attack. Objectives often change the correct pace. An escort mission rewards controlled movement, a rescue mission may punish unnecessary recruitment or losses, and a defense mission rewards preparation more than territory. Read the wording again when a familiar army suddenly underperforms.
Another common error is splitting squads to cover too much ground. Separation can be useful once you understand enemy timing, but early on it removes the concentrated damage and rescue ability that keeps a small force alive. Split only when the objective demands it or when you have already secured the route between groups.
Do not spend Special Weapons as soon as they become available. Their value increases when they hit several enemies, interrupt a dangerous push, or protect a mission-critical unit. Saving every weapon is also a mistake, so use one when it prevents a larger loss.
Avoid chasing optional exploration while the main objective is already under pressure. A hidden interaction or achievement can wait for a replay. Ironhide's achievement list includes discoveries, timed tasks, no-loss conditions, unusual building restrictions, and difficulty clears; these are easier when pursued intentionally rather than accidentally during a first attempt.
Finally, do not judge a squad only by its damage number. Range, durability, mobility, crowd control, objective utility, and hero synergy can matter more than raw output. If a unit appears weak, test it in the mission type where its role makes sense before abandoning it.
- Do not rush into unexplored areas with a hero alone.
- Do not spend all credits on Arsenal items before buying useful upgrades.
- Do not restart immediately after one mistake; stabilize and see whether the objective is still recoverable.
- Do not attempt every achievement during the first clear of a mission.
- Do not copy a single squad setup across every terrain and enemy faction.
| Mistake | Why it fails | Correction |
|---|---|---|
| Overextending | New waves arrive before the force can regroup. | Advance from secure positions and preserve a retreat path. |
| Over-specializing | The roster lacks an answer to a new threat. | Keep frontline, ranged, and specialist functions represented. |
| Chasing perfection early | Optional conditions distract from learning the mission. | Clear the stage first, then replay for the achievement. |
| Ignoring support menus | Enemy and mission information remains unused. | Check the Database, Holodeck, and achievement list between runs. |
The official sources describe unit variety and mission diversity but do not publish a complete balance table. Exact best-in-slot squad choices may therefore vary by platform version, difficulty, and personal playstyle.
ACHIEVEMENTS
A sensible completion route
For an achievements-focused run, begin by checking the in-game Achievements menu from the map. Ironhide says completed achievements can award credits or Tech Points, so early low-risk goals can accelerate progression. The list includes straightforward milestones such as buying a Tech Lab upgrade, clearing mission types, leveling heroes, and completing the campaign on Veteran.
Next, record achievement conditions that require a specific mission or unusual restriction. Examples in the official list include destroying targets within a time limit, protecting every member of a group, using only one type of defensive tower, avoiding a refinery, finding hidden creatures, and completing an escort without damage. These conditions are easier to plan from the start of a replay.
Leave the broad cleanup for after the campaign. Once the map is familiar, use the Holodeck to revisit planets, raise difficulty, and test alternate squad choices. The official list also includes clearing frozen terrain, defeating named leaders, completing each Spec-Op type, and reaching maximum level with two heroes. Some achievements may require specific unlocks or mission access, so the in-game list should be your final authority if wording changes.
A practical order is campaign completion, permanent upgrades, comfortable Special Operations, Veteran clears, then highly restrictive or hidden-object achievements. Impossible should be the final long-term target because it unlocks only after a campaign completion and demands much tighter execution.
- Check the achievement menu before spending rewards.
- Separate timed, no-loss, and discovery achievements into dedicated replays.
- Use the Holodeck to verify the highest completed difficulty on each planet.
- Treat the in-game achievement description as authoritative if it differs from an external checklist.
| Priority | Achievement type | Best time to attempt |
|---|---|---|
| Early | Tech Lab purchase and simple progression milestones | As soon as the relevant menu or upgrade is available. |
| During campaign | Mission discoveries and objective-specific conditions | Only when the mission is already understood. |
| After campaign | Veteran and named-leader clears | With a developed roster and practiced routes. |
| Cleanup | Hidden finds, no-loss runs, and restrictive challenges | Through focused Holodeck replays. |
Ironhide's official list confirms more than 30 achievements and specifies several mission conditions. It also confirms that the map's Achievements menu is where progress is viewed.
FAQ
Common questions
Which difficulty should a new player choose?
Normal is the best default because it teaches the systems without making every mistake immediately fatal. Choose Casual if real-time strategy controls are unfamiliar. Veteran is better saved for later, and Impossible unlocks only after completing the campaign on any difficulty.
How many squads can I bring into a mission?
Ironhide's support page states that you select three squads for a mission from a larger roster of squad groups. Build those three around complementary jobs rather than selecting three similar damage dealers.
What should I buy first in the Arsenal?
There is no verified universal purchase order. Start with items that solve problems you repeatedly encounter, keep only three equipped, and protect enough credits for permanent Tech Lab upgrades. Replace items between missions instead of carrying an unsuitable loadout.
Where can I learn enemy weaknesses?
Open the Database from the bottom-left area of the map and filter by faction. It is the game's built-in reference for common elements and enemy information, so check it before experimenting with a difficult matchup.
How do I work toward achievements without making the campaign harder?
Finish the mission normally first, note the condition, and replay it through the Holodeck. Timed, no-loss, hidden-object, and restricted-build achievements are usually more manageable when attempted as dedicated objectives rather than alongside a blind first clear.
Sources
What we checked
Official listings establish current availability and product facts. Community pages are used for mechanics and build history, then labeled separately.
- OfficialIronhide Game Studio support: difficulty settings
- OfficialIronhide Game Studio support: Holodeck
- OfficialIronhide Game Studio support: achievements
- OfficialIronhide Game Studio support: Arsenal
- OfficialIronhide Game Studio support: Database
- OfficialSteam store listing for Iron Marines Invasion