Loadout:
Shotgun / Assault Rifle
Arc Thrower / Holotargeter

Squaddie Perks:
Healing Darts - Heal an ally from long range for 4hp. 4 uses per mission.
First Aid Training - Grants Heal, Stabilize and Poison Immunity.
Flash and Smoke - Grants extra flashbangs/smokes if any are equipped.
Heal - Heal an ally within 2 tiles for 4 hp. 4 uses per mission.
Stabilize - Stabilize a bleeding out ally. Unlimited uses.

Spotter Perks:
Rapid Targeting - Holotarget enemies for 1 action and rapid target ability.
HD Holo - Holotargeted enemies are easier to crit.
Vital Point Targeting - Holotargeted enemies take more damage.
Hit and Run - Take a free shot at no penalty, can be used every 5 turns.
Independant tracking - Holotargeted enemies remain marked for longer.
Multitargeting - Holotarget multiple enemies in an AoE area.

Healer Tree:
Life Saver - Heal an ally within 2 tiles for 4 hp as a free action. 1 turn cooldown.
Revive - Remove negative mental effects and/or revive an ally within 2 tiles. 4 uses per mission.
Adrenal Darts - Boost allies aim, mobility and provide them with shielding for 1 turn. Also removes negative mental effects.
Tend Wounded - Heal every nearby all for 4 hp. 2 uses per mission.
Extra Supplies - Grants 2 additional Healing Charges & Healing Darts per mission.
Revitalize - Restore the action points of nearby allies. 2 use per mission.

Disabler Tree:
Total Combat - Can throw/use any item for 1 action point.
Electroshock - Arc thrower misses now disorient enemies.
Arc Pulser - Arc thrower can now target robotic enemies and also deal damage.
Warning Shot - A shot that makes an enemy panic if it hits.
Stun Gunner - Arc thrower has a bonus chance to aim.
Chain Lightning - Attempt to stun every visible enemy with the Arc Thrower.

GTS:
Vigilance - Grants +5 bonus to Aim, Crit, Will, Dodge & Defense.