World of Tanks is the one I know best so that's always the one I'll suggest. It'll actually give you plenty of chances to take the sort of role where you go at it alone. I like it well enough, and I rarely talk whatsoever when playing it (though I havent been on in awhile, but it's been on my mind) but I generally do just fine.
Just depends on using the right tanks for the right jobs. If you're doing a sort of "sniping" role for instance, that is a good role for someone to do alone; just gotta know the map (so that you know where you can safely sit, and also know where to look) and use a tank that's actually good at it.
If you want to know what tanks are good at what things, there's about 5 bazillion guides and such out there that can help you to learn. That's probably the case with the other two games as well.
Pretty good game, really. One of the only multiplayer games I'll actually even bother with these days.