Just a tip for people. * spoiler allert*
if you like playing aggressiv i’d pick the AGENT since his range is quite nice.
if you play more defensive the agent is also fine but the medic is way better for defense.
the engi is a bit of both… he may place a turret (with 150 hp) which he may heal for 50 each turn once, which can attack each turn AFTER the set once for 5-8dmg x 4hits and autoattacks for the same once on enemy turn when they move into range. his weapon meanwhile is best in melee.
if you want to have the most choices in playing different each game you may wanna pick the engi because you’ll else have to wait untill you have the money… your commander may choose an ability( you get one of currently 8 abilitys every 2 levels) and he also has healing (once per round for 50) and artillery (about 50dmg 3x3 aoe on long range or so)
well… if you will play alot with your friends / against the same enemy youll probably dont wanna sit there 2,3 or 4 games with the same build and perform the same play… but i dont know
with friendly regards
tinker