Shows me not playing multiplayer 
But N7 Fury fits your description of Vanguard combat. Gameplay
Every class can be played aggressively. I said that it is a defining characteristic of a "canon" Vanguard but not necessarily the only one. The idea behind Vanguards is high-risk, high-reward playstyle when the closer you are to the enemy, the deadlier you are. Charge works perfectly with that, yes, but it is not mandatory. Shockwave is also limited by the range, Nova too. You don't need Charge to build your character around close quarters combat. And not using it won't make your character any less "vanguard".
Well, OK, Havoc and Fury are both the oddballs 
And I quite disagree that every class can be played aggresively. Apart from some power exceptions (Snap Freeze for example), the vast majority benefit from attacking at a distance, especially Adepts, Infiltrators, Engineers and Soldiers. Sentinels too, apart from the Krogan Warlord.
Then again, MP is pretty varied on class choice. But SP is much more "traditional" in that matter. And anyway, as I said, apart from the Havoc, no one else specializes in closing in in a split second, which is the Vanguard's trademark.