On a wildcard troopers profile it says, "Up to one (troop type) may join any fireteam in this sectoral army." I understand that it means that 1 of that troop can replace/ added to any fireteam. But if the wildcard has availability 2 or more and i have 2 fireteams does it restrict me to only able to use 1 in 1 fireteam in my whole force? I hope not.
It's a per-fireteam restriction. So if you have two fireteams, you could have one of that wildcard troop in each team.