this is me helping
I thought R3 had an awesome Campaign, but the multiplayer was sooo unbalance with the turret spam and power weapons. I play R2 Co-op every now and then, but I never got into it like other people did. Maybe I never ranked up enough to get the fun weapons and cool armor. Fuse's Echelon mode looks really cool though
On a Starhawk related note, I feel like the only level 50 who plays Prospector. A lot of the servers I join normally only have people up to 30. I guess that's a good thing though, more people are playing.