1) if you really are into capping ships than I suggest for you
- choose the Engineer class which have a really nice skill that can drop enemy troops efficiency up to 70% (if you invest ALL your points in that skill, not recomended though).
- chose every officier that improve your troop efficiency (you can gain a 10% boost from them)
- Chose the proper perk in the perks list. Your troopers will gain a lot of strenght. At lvl 15 you can max it and you'll be unstoppable xD
- chose a ship with a good transporter (capable of transfering at least 20 troopers a time) and enhance it with an enhancement that augment the transfering capacity
- before starting the boarding, pount the enemy hull to around 10% (even less if you manage). Enemy troopers will be less effective.