User blog comment:The Gunsmith/So, what weapons did you actually end up using?/@comment-2130363-20120411052854

I found myself having way too much love for the Disciple. It's lightweight, packs a heavy punch, and has plenty of spare ammo. i outfitted it with a heavy barrel and a bayonnet. Perfect for any vanguard.

Sometimes for fun though, I would bring a single Graal with me. It's got great accuracy for a shotgun and its shots are devastating.

Enough with the shotguns though. I also had fun with the Arc Pistol. I can fire use it almost exactly the same as a Halo Plasma Pistol. Fire it in bursts and it does decent damage. Charge it up and you've got an efficient killer of any low level enemies.

I find I haven't been using as many SMGs but when I decide to equip myself with one, it is usually the Hornet. Once you master the recoil, it can be a very effective weapon.

On the assault rifle side, I usually use the Vindicator or the Valkyrie. The Valkyrie is reminiscent of the old ME2 Vindicator while the ME3 Vindicator is great if I want to use powers more often. Sometimes for kicks, I would bring the Particle Rifle with me. Its got the old ME flavour and it packs a punch when it goes into overcharge.

Well, there's my two cents. If I really had to pick just one, I'd probably go with the Graal.