Helldivers V brings HELLDIVERS 2 into GTA V Story Mode. Single player. You need GTA V Legacy and your own HELLDIVERS 2: the characters, weapons and sounds are read from your HELLDIVERS 2 install the first time you start it (about 10 minutes)
The armory
Every Eagle and Orbital: Strafing Run, Airstrike, Cluster, Napalm, Smoke, Rocket Pods, 500KG, Gatling, Airburst, 120MM, 380MM, Walking Barrage, Laser, Railcannon, Gas, EMS, Smoke and Precision Strike, plus Eagle Rearm, Hellbomb and SEAF Artillery.
Sentries and emplacements that fire on their own, minefields, and the Shield Generator Relay.
Backpacks: Jump, Hover and Warp packs, Supply Pack, shields, the Guard Dogs, C4 Pack and Portable Hellbomb. X uses them.
The Patriot and Emancipator Exosuits, the TD-220 Bastion tank and a Fast Recon Vehicle.
Los Santos at war
The Automatons replace the police, and heavier bots come with each wanted star. The armoured ones are twice as tough. Terminid packs roam the map, and the Illuminate invade. All three fight you and each other.
Every enemy has its own HELLDIVERS 2 model, animations, attacks and sounds.
You get the HELLDIVERS 2 HUD, stims, thermite grenades, dives and stamina.
Hold Ctrl and tap W A S D to enter stratagem codes. F9 turns the mashup on and off.