"Call down reinforcements to replace the Helldivers lost in action."
- Armory Description
Stratagem Code
Players must enter the following sequence, using the controller d‑pad, in order to call down this Special Stratagem during a mission:
Helldivers 2
In Helldivers 2, the Reinforce stratagem serves a similar purpose of respawning fallen players, and is automatically available to all players. There is no cooldown on reinforcing; however, there is a limit imposed on the amount of Reinforces allowed per mission, with a budget of five uses per player (reaching a maximum of 20, not including the use of boosters). Exceeding this limit will cause Reinforces to slowly regenerate on a timer, crippling the squad's ability to respawn additional players, and ending the mission if everyone should perish.
If everyone dies while there are still Reinforces left, the entire squad will automatically be reinforced. Exceeding the mission timer will disable the use of Stratagems, including Reinforce, leaving you permanently unable to respawn.
Unlock Requirement
The Reinforce Stratagem is standard-issue and available to all Helldivers regardless of rank. However, Helldivers are only able to use the Stratagem during missions involving at least two players.
Upgrades
| Upgrade | Cost | Effect | |
|---|---|---|---|
 |
Mk1 | Basic variant, no upgrades. | |
 |
Mk2 |  1 |
Cooldown reduced from 60 seconds to 45 seconds. |
 |
Mk3 | 2 |
Cooldown further reduced to 30 seconds. |
Gameplay Tips
- The Reinforce Stratagem is only available if there are two or more players in the squad. Solo players do not have access to it, and are Auto-Reinforced by Helldivers Command.
- Unlike the situational NUX-223 Hellbomb and ME-1 Sniffer Metal Detector Special Stratagems, Reinforce is always available in multiplayer games, even when all Helldivers in the squad are alive.
- It is essential for any Helldiver in a squad to learn this Stratagem's code by heart, so it can be performed quickly in case of an emergency.
- For this same reason, this should be among the first Stratagems to be upgraded by co-op players.
- Also work on learning to use Reinforce while downed, as it can save the entire team. Holding on to the beacon as you are killed will let you reinforce yourself and anyone else who might have died.
- Additionally, learn to quickly input Reinforce with inverted controls, so you can use it when the Illuminate Illusionists and Council Members have hit you with their confusion attacks. If you are too slow, your input could return to normal while you are still entering the code.
- Throwing a Reinforce Beacon will slightly pull the screen towards the location where it lands for a few seconds. As you basically get an infinite supply of these, the Beacons can be sparingly used in emergencies for spotting offscreen enemies or freeing yourself if you get stuck on the edge of the screen.
Stratagem code is the holy sign of the cross