This is very true.
Though if you work a Shied Vanguard right, you may not deal a lot of damage, but damn can you sit there taking a beating for the team.
But this is very correct, an assault VANGUARD is WAY better than a commando considering he has way better defensive abilities.
Honestly the commando needs better dps abilities if he's not going to be a medic. it should be
Commandos are medics or with the heavy cannon basically a modern day machine gunner laying down heavy fire and the Vanguard should be the close encounter, eat your heart out you are not getting through my defenses unless you are that good while i beat you to death with my rifle.
While the vanguard is exactly like i just said, the commando i see is SADLY lacking.
+1 commando, is to easily shut down, assault also since you need to use charged bolts, in the end it suffers the same exact problem as gunnery spec.