Sevrun wrote...
When the Vanguard drops outta the game because the Krogan is 'kill stealing' at long range with a Revenant. (that'd be me, the Krogan)
And Hyrist is right, though I'd say GTFI cover when you're looking at a target rich environment. You'll make a smaller target and not get me splashed with a rocket/Ravager Barrage. This isn't CoD where sprinting around with a shotgun in the baldass open is still considered a good idea 
Another example:
When you have a person covered on either side of a doorway and someone decides to just STAND in the middle when they know rockets/ravager barrages are coming in constantly. Why? because he'll get all three of you killed.
Depending.
My hope is that if I'm in the thick of things, with the proper support, everyone else can afford to not stay huddeled behind cover as much, (meaning they're spending more time firing from cover rather than ideling in cover due to supression fire. More bullets are going the enemy's way, they die faster.
For a Vanguard, it's VERY hard to get adaquate cover after that first charge is comitted without fire support. Thus the charge/nova spam. That's not so much for damage as it is for the invincibility frames, shield regard, and mass AoE stagger/fling.
Now I have two differing Human Vanguards:
One specalizes in the typical Charge - Nova, going Area Charge and full Damage/Cooldown Nova. This gives the most staggering and damage per timeframe to help keep the amount of time I'm stuck in the thick of it to a minmum. It also primarily serves as my heavy damage Vanguard for when I'm in a group that dosen't have much firepower damage.
My other Human Vanguard is a supressionist. Fully leveled Lift Shockwave with Half-Nova (contemplating no-shield loss here.) I take the hit in fitness rather than shockwave and focus as a support. Using Nova primarily as a detonator and charge PURELY as a recharge/repositioning tool.
I use this one primarily if there are other Vanguards, or I notce we have plenty of heavy hitters in the group and I'm still wanting to play Vanguard.
Only other one I've got unlocked right now is Asari Vanguard, which I haven't quite locked down a tactic for yet.