"When attacking a room, arm your squad with pistols.  They only require three action points, so you'll get a lot more shots off before your enemy can react." - TEM

"Be careful before adding a ghoul to your squad.  If the ghoul has the Glowing One trait, he'll irradiate the rest of your squad." - TEM

"When creating your character, make perception a high number.  Shooting first is often the best way to stay alive." - Kaibab

"If you have a Super Mutant in your squad keep him away from your snipers... mutants affect the perception of any NPC within their area of influence." - nunyobuisiness