Its not about having the chaplain punch hard, its about using the chaplain to make an entire unit to punch hard. Those rerolls to hit in assualts are wonderful, and fearless never hurts. Pay for the jet pack, get a full assualt squad, and watch them go to town on the enemy. Term armour isn't worth the upgrade because he loses the pistol, and at 2 wounds, he can die in one turn to power weapon units (howling banshees, terminators, nobz, etc) even with the terminator armour upgrade. If not using the jump pack use cassius, who is an upgrade in both close combat and shooting for a cheap point jump