Loadout:
Assault Rifle
Gremlin

Squaddie:
Hack
Aid Protocol
Haywire Protocol

Corporal:
Repair Protocol (Heal a robotic ally)
Holo Targeting
Combat Protocol

Sergeant:
Shade Protocol (Grant an ally shadowstep and +4 mobility)
Stick & Move (Passive, +5 Defense & +3 Mobility)
Burn Protocol (Set an enemy on fire)

Lieutenant:
Threat Assessment
Fortitude (Passive, +10 Defense)
Scanning Protocol

Captain:
Action Protocol (Grant an ally +1 action point)
Infiltration (Passive, +25 Hack & not detected by advent towers)
Shock Protocol (Stun an enemy for 2 turns)

Major:
Aim Assist (Grant an ally Squadisght & +15 aim)
Overdrive (Can be used every few turns to gain 1 extra action)
Kill Cam (Grant an ally +25 crit chance & +50 dodge)

Colonel:
Distortion Field (Passive, Gives squad +15 defense)
Overcharge (Passive, All Gremlin perks get +1 charges)
Capacitor Discharge

GTS:
Overclock (+25 Hack)