So I've got the following problem: I have trained a psi soldier to max abilities and then made him a leader with 4 additional active abilities. I equipped him with a blaster launcher and a mimic beacon. With the "Overwatch All/Others"-Mod, that adds up to a huge amount of active abilities - so some of them were not available in game anymore. Maybe there is a fix maximum of abilities? I had to deactivate the Overwatch All mod to see all abilities.