Full powers?
There are 5 skills, 2 passive, and 3 active. You get 20 levels. The common choice people make is to max 4 skills and leave one empty, or max 3 skills, get another up to level 5, and put 3 ranks into the 5th.
There is intentionally not enough points to max all 5 skills to make the players choose their builds, and make respec cards worth something, or promote to try a different combination.
to lvl your character you have to complete a game of multiplayer. you get more xp based on how far you got. full extraction on wave 11 with no one being downed entire game gives the most xp. each difficulty gives different amounts xp and credits.
lvl 20 is the max
it is also possible to put one skill to rank 6 and the rest to rank 5, or what the other guy said.
You cannot acheive full powers but here's a link to some builds.
