Keep in mine as time goes on, people progress, there will probably be less people on T6, but its all very random. If you see no one in a game, just start one up, within a few minutes some others will join yours. Just don't claim the reward for tyrael, it stops others joining.
It doesn't take too much to hit tx. remember, there is a difference between TX solo and TX with 4 people .. i had some games I was SUPER slow, i did maybe 3-4 bounties, the rest did the others, luckily they didn't try to kick me

If you don't die they won't suspect your a noob

Matt, have you seen what the skills are for the charge attack? If its a 1 on 1, you get your charge back, great for bosses, GRs. If there is a BIG group, you aim and hit as many as you can, it resets the cooldown and get a charge back. use ancient spear when you have fury. I'm not quite at the right skills but its mainly working for me. I'm missing a few bits of gear myself