It sends three friendly NPCs to support the player(s). A green triangle (the Delta Squad Logo) indicates that the player has a Delta Squad at their disposal. They are equipped with M16A4s and are useful at drawing fire. Both they and their counterparts, the Riot Shield Squad have benefits. Delta Squad Soldiers are most effective in positions with lots of cover, both direct and overhead, as they do not have health regen and Little Birds can quickly eliminate entire squads. It isn't a good idea to move locations with a Delta Squad attached as they can easily be picked off while moving. As with the Riot Squads, they will follow either player, based on whoever is closest around. Delta Squads will act like single player AI (hiding and shooting behind cover, talking, coordinating, etc.).
- In the Survival Mode trailer, one can see that one of the Delta Squad members is named Sandman. This Sandman trooper does not appear in the final game.
- Delta members will not drop their weapons when killed.
- When a Delta Squad arrives, they will get twenty seconds spawn protection.
- The icon shows Delta Squad members with suppressed weapons, however, they do not use suppressors ingame.