This pairs extremely well with their Shotgun usage making one-shot kills their staple technique. The Champion Vanguard Build maximizes their capability of dealing burst damage up close with the Charge Power, which provides instant access to enemies by ramming into them. They can immobilize enemies by knocking them off of their feet and by suspending them up in the air with Shockwave and Pull. What makes the Vanguard menacing, in addition to high Weapon Damage is their Biotic Powers.
If they have to inflict mid-range damage, they can use a Heavy Pistol instead as it provides decent accuracy and damage at this distance. In case they run out of Shotgun Ammo, Vanguards can simply switch to using the Submachine Gun. The Vanguard Class specializes in dealing massive damage at point-blank range and sometimes, even killing enemies with just one shot thanks to their expertise in wielding a Shotgun. Vanguard Build Guide | Mass Effect 2 Legendary Edition