27: ship advice: most type bs: overpowered
e.g. fed b (dual lasers LOL XD and lvl 2 artillery beam) Zoltan b, Rock b (once you get teleport, before that its crap) KESTREL B (man shields and weapons with humans, zoltan manning engines and mantis manning pilot), Lanius B (adv. flak one power flak 1 taking one less power and more accurate, lanius boarding party strategy: board. mind control first responders. dre and Mantis B (rock/crystal-mantis boarding teams. (one crystal to lock rooms, mantis to destroy system or two crystals destroy systems, mantis distraction party). some type cs underpowered e.g.kestrel c and unstealth C, crapzoltan c.
28: crystal boarders are deadly. as F***. yes I swore, but only because they will lock down rooms your crew are in and also the lockdown drains O2 somehow. thus they will kill your crew. even if you drain O2 from everywhere except the medbay and (luckily) your crew are there, they will still attack systems that are drained, since they have reduced O2 damage

29: dont sell dual lasers OR adv. flaks. they are more accurate than their two-power variants i.e. bl. 1 and flak 1. they also can substitute for basic lasers, fully powering the weapons when you have just one power bar and slot on your weapons.