Your loadout can help you greatly in Extinction and you should create it according to your class. There are 6 Loadout catogories in Extinction.
Loadout[]
Class:
Weapon Specialist, Tank, Engineer, Medic
Pistol Type:
P226, .44 Magnum, M9A1, MP-443 Grach
Ammo Type:
Ammo, Stun Ammo, Incendiary Ammo, Explosive Ammo, Armor Piercing Ammo
Team Support:
Team Explosives, Feral Instincts, Armor, Team Boosters, Random Supplies
Strike Package:
I.M.S, Mortar Strike, Trinity Rocket, Sentry Gun, Vulture
Equalizer:
Portable Minigun Turret, Grenade Turret, Crowd Control, MK32 Launcher, Death Machine
My Preferred Class Loadouts[]
Weapon Specialist: MP-443 Grach, Ammo, Team Explosives, Sentry Gun, Portable Minigun Turret
Tank: .44 Magnum, Armor Piercing Ammo, Feral Instincts, Vulture, Crowd Control
Engineer: MP-443 Grach, Explosive Ammo, Team Boosters, Vulture, MK32 Launcher
Medic: MP-443 Grach, Armor Piercing Ammo, Armor, Vulture, Crowd Control