http://cloud-2.steampowered.com/ugc/902 ... 7B96ED4D2/
Getting mastery of all 6 skills on a single guy can be accomplished in a single fight, provided you have the time to spend on it.
Choose someone who already has gold mastery in combat, as this can be the most dangerous skill to level.
First you'll need to find an enemy ship that can not damage your shields. It helps to have lots of shields, I had 3 when I did this. I fought an enemy auto drone that had a 3 shot laser, it could never hurt me.
The first thing I leveled was piloting and engines. Just set your select person in the helm and wait for him to dodge enough times to level up to gold. It goes faster with more engine upgrades.
Increasing shields is easy also, put your guy in the shield room and power off your engines so you don't waste time by evading shots.
Increasing weapons. put your guy in the weapons room and use fast reloading weapons like ion burst set to autofire. This should increase very quickly.
Repair is tricky. My weapon room was upgraded to level 6 and I had fire bombs. I used a fire bomb on my own ship, in the weapon room. (power down the engines so you won't evade your own bomb) When the room has burned down to one bar, put out the fire. If you let it burn up completely, it will cause hull damage. Easier to extinguish in 1x2 weapon rooms. After the fire is out, send only your crewman you are trying to level up to repair it. Repeat this several times until he has gold mastery in repair.