At the start and throughout the game the player is given skill points. With these it is possible to choose what areas he or she would like to specialise in.
“Weapon Skills Mechanics The accuracy bonus for Heavy, Pistol and Demolition is, from Untrained...Weapon skill
“There is a bug that allows the player to open any lock with only one lockpick. After starting to...Lockpicking skill
“Environmental Training: Experience with using hazmat suits, ballistic armor, thermoptic camo and...Environmental Training skill
“Medicine: Practical knowlege of human physiology can be applied by an agent in the field...Medicine skill