BT, at RE if we play on the same side, we're running together. I've become a more in-your-face player this year.
My play style used to be a hang back and wait it out style. But now I've got a few different methods. It really depends on the marker I'm carrying and the mission.
If the mission is going to be a big firefight, and I'm carrying a semi, I'm going to be up front, maybe a bit off to the flank. Like BT said, it really helps to get those key positions early and then make you advance from there.
If one of the objectives is far and needs a runner, I'm your man. I've never been out-paced by anyone in a MM game when I'm pushing myself. I run light, I have long legs, I just move quick.
When I'm playing pump, I just can't afford to get into a big fight alone. If I know I have people with me, I'll go on the front lines (the loud Short Barrel scares the noobs). If I don't have people to rely on, I'm going to work the flanks.
Any way I play, I'm not a spray and pray guy. If I can't hit you with a few shots, I'm moving closer or getting a better angle. I'm not one to lay cover fire for half the team, you lay it for me.
Oh yeah dude, we'll run together, no problem.

You've definitely been more aggressive this year and it's pretty cool. Sure, you can't lay cover fire, but that's where my marker comes in handy and I don't mind laying cover fire to advance the team. That will work well, I think. The two-man stick-and-move strategy is pretty tried and true; the military uses that tool, so it's gotta be good for paintball. Even if you have an 8-person team, splitting up into two-man cover groups is key for advancing EVERYONE to the front and I think that tactic would work marvels if followed.
What I would do is literally assign two-man groups - Varnel and Enhander, Tanix and Mamba, Jackson and BT, etc. Now, even though we're all moving as a single unit, the breakdown is all based on two-man movements and covering for the other groups in the area. That way, if Jackson and I would hit resistance, the other group nearby would have our backs and visa versa. Dunno, maybe I'm just rambling, but I see a real strategy brewing coming out of this AVP game.