Thanks for the reply but this question is in response to a Pocus post a few days age. "By the way the engine supports abilities that are disabled initially and that, with experience, activate. So theoretically it could be feasible to give xp level 3+ light infantries the sharpshooter trait." So exar 83 was refering to this. I'm also curious if there are any other units that can unlock abilities such as the light infantry to which Pocus refers.