ANY better weapon (Advanced Grenade Launcher, Arc Blade, etc.) ANY Special Grenade (Gas, EMP, Acid Grenade/Bomb, etc.) ANY Special Armor (EXO Suit, Warden armor etc.) ANY Special Ammo (Talon, Venom, Dragon, AP, etc.) Battle Scanner, Mindshield, Mimic Beacon Smoke Bomb (Permanent upgrade to Smoke Grenade)įorbidden Items include (not comprehensive - ANYTHING not in the list above may be bad):
Nano Medikit (Permanent upgrade to Medikit) Alien/Plasma Grenade (Permanent upgrade to Frag Grenade) Assault Rifle, Pistol, Shotgun, Cannon, Sniper Rifle, Sword, Gremlin Mark I, Psi Amp, Grenade LauncherĮxceptionally, the following upgrades are allowed: (since you can't downgrade) Of note is that this only applies to the final mission, you can happily upgrade throughout the game, just make sure your squad going into the final mission is downgraded. Found this on StackExchange, props to Isuka:
