I'm definitely down to play in groups, usually when I'm around nobody else is, which is the sole reason I solo so much. As for definitions. Squadron - Skjaldborg, like a clan. We have that up and running, not sure who is in charge of it if people need to get access. The initials are SOR. Squad - Limit of 4 per game match. Private games have no limits and are good for group battles, also you can do ridiculous stuff like plane races (along rivers, for example), or playing tag with one plane in the lead and every else trying to ram him (biplanes are fun).
I'll be honest, while I enjoy flight sims immensely, I can't quite seem to get any good at actually playing... As a result, I've been slacking quite a bit and haven't gotten too far (pre-patch: rank 5 Japanese, rank 2 American, absolutely nothing for the others) Nevertheless, once I come back from the break and patch up, I look forward to flying again; recently, I've been coming to enjoy the game more and more (only in groups, though ).
Most of the 3:1:1 has been playing quite a bit of WT, we mostly play the USSR and I don't think any of us have higher than a tier 3 plane though we tend to be on it as much as we play MWO. I guess we could check the TS server to see if you guys want to play too.
That and steam has voice chat that works better on my comp than TS. My name is xph_xorr and we are all in the squadron, and we play almost all day.