Crew skill
An ability trained past 100 percent proficiency, which either improves gradually as it is learned or activates all at once when complete.
Also known as skills, crew skills, perk, snap shot, safe stowage, adrenaline rush, situational awareness, off-road driving, smooth ride.
Once a crew member reaches full training in their role, further experience goes into skills. A skill applies progressively as it trains, like Repairs shortening module repair time. A perk does nothing until it hits 100 percent and then works fully, like Sixth Sense.
The choice of skills changes what a vehicle is. Concealment skills on a scout, gun handling skills on a sniper, repair speed on a heavy that expects to be tracked: the same vehicle with a differently trained crew plays differently.
Skills can be reset and retrained, at a cost, so a crew is not permanently locked into an early choice.