Commander
Jack-of-all-trades - Skill
Commander has learned all specializations and can replace knocked out members of his crew. This works only for the base specialization. Effectiveness of the skill is proportional to the number of wounded crew members.
Tutor - Skill
All crew members besides the commander gain additional battle experience, based on the level of this skill.
Eagle Eye - Skill
Maximum view range is increased with the training of this skill. If the observation devices are damaged, skill effectiveness is increased.
Premonition - Perk
In the interface a special visibility indicator will allow a commander to check whether or not the vehicle has been spotted.
Expert - Perk
When aiming at a vehicle, a list of all its damage will be shown.
Driver
Ace - Skill
Improves the traverse speed of the tank.
Off Road Master - Skill
Reduces the ground resistance for terrain currently being traversed. This increases the mobility of vehicle on such soils and reduces the time necessary to speed up to the maximum.
Cruise Master - Skill
Decreases gun dispersion caused by vehicle movement. Does not include rotation of vehicle.
Ramming Master - Skill
Increases the damage done by ramming enemy vehicles and decreases damage done to player’s vehicle. This bonus is not in effect when ramming vehicles from the same team and immobile vehicles
Neatnik - Perk
The engine no longer leaks oil or gasoline, and the chance of fire is reduced.
Gunner
Master Gunsmith - Skill
Reduces the dispersion of a damaged gun. Only the highest trained level of this skill will be in effect if multiple crewmen have the skill trained.
Sharp-shooter - Perk
Improves chance to critically damage modules and crew members with a shot. The bonus does not affect critical damage by HE rounds. Only the highest trained level of this skill will be in effect if multiple crewmen have the skill trained
Steady Hands - Skill
Reduces dispersion caused by turret rotation. Only the highest trained level of this skill will be in effect if multiple crewmen have the skill trained.
Nemesis - Perk
Increases the duration in which an enemy vehicle is detected in a small sector in front of the gun. Only the highest trained level of this perk will be in effect if multiple crewmen have the perk trained.
Loader
"Non impact" ammo rack - Perk
Increases ammo rack durability, because ammo is placed in an accurate way and has no direct contact between shells. Only the highest trained level of this skill will be in effect if multiple crewmen have the skill trained.
Hunch - Perk
When reloading a shell of a different type, there is a chance the shell will be instantly loaded. Instant loading cannot occur more than once before a full reload cycle has completed.
Do-or-Die - Perk
Improves reload time for vehicles that are very low on health. Only the highest trained level of this perk will be in effect if multiple crewmen have the perk trained.
Radio operator
Boffin - Skill
Increases radio signal range. Only the highest trained level of this skill will be in effect if multiple crewmen have the skill trained.
Sonar - Skill
Increases view range. Only the highest trained level of this skill will be in effect if multiple crewmen have the skill trained.
Retransmitter - Skill
Improves the radio signal range of all friendly tanks that are within your signal range radius. Only the highest trained level of this skill will be in effect if multiple crewmen have the skill trained.
Last Ditch Attempt - Perk
When your vehicle is destroyed, but the radio operator is not killed, he continues to transmit the coordinates of enemy vehicles for a short time. Only the highest trained level of this perk will be in effect if multiple crewmen have the perk trained.
All crewmen
Brothers-in-arms - Perk
If all crew members have this perk, they receive a bonus to all of their skills. Perk does not work, if any member of the crew is knocked out.Training of crew members:
The training of these skills will be done through a new user interface element that will allow you to place skills in a training queue. This will result in immediate training of a new skill, once your current skill reaches 100%, leaving no risk of wasted battle experience.
There is a number of skills a specific crewman can have – limited only by the number of skills existing in the game. However, additional skills beyond the first will take two times longer to train than the previous skill.
Additionally, if you have not chosen skills for training, any experience gained by your crew will be stored in a separate experience pool and distributed automatically once you select skills you would like to advance.
Training for additional specialties and perks cannot be accelerated by any in-game currency.
Respec of crew members:
When version 7.2 is released, you will receive the option of a “soft reset” at no additional charge. You will be able to reset the chosen skills for each crewman currently assigned to tanks or in your barracks.
The experience you had gained to that point will be stored into a separate pool and will be redistributed to new skills as you assign them. For example, if your crewman currently has 100% skill in Repair and 100% skill in Camouflage, you will have the experience from both of those skills stored – able to be distributed to the skills of your liking.
We will also be introducing a new experience redistribution feature for your tank crew that works similarly to retraining a crewman.
Gold reset – Returns full skill experience earned to the crewman’s experience pool, removing progress in current skills.
Credit reset – Returns 90% of experience earned to the crewman’s experience pool, removing progress in current skills.
Free reset – Returns 80% of experience earned to the crewman’s experience pool, removing progress in current skills.
Source
Errata: original loader's hunch perk info was incorrect, according to Overlord's post #4145 on EU Q&A thread.