Marauders and Snipers are very squishy, and can't hold a fight very long on their own. Essentially, they are not solo friendly unless you have your healer companion out. I would propose giving marauders and snipers heals that effect their companions "only" so that they can utilize tank or dps companions more effectively. This is particularly true for snipers, who like all IA's do not get their second companion for a long time, Alderaan to be precise. I don't know how things work on Republic side, but this is just a small change that I feel would make a big improvement on marauder/sniper gameplay.