My bit on the matter, in lair missions it seems that you either have folks who are new and don't know what to do or those who've played but their's no communication between them, so you end up with a weird mix of wargear. It's also a fun thing trying to decide on what wargear suits you and the group, usually the slower power weapons don't help out, but it'll be amazing for the warriors. Then just general coordination takes practice or prior organization, though I'm sure there are folks who pull it off by chance. As to horde, it is dead easy in my eyes, I've jumped between all the classes minus jump(haha), little reason to take it. I've found the main holdup in horde is that it's either folks haven't played it or haven't realized there are locations where you can hold up and drop some brukka, understandably, personal experience is that I'll either let them do something and fail or go to these holdout locations for them to fall back to. It's no ill will toward them, but you can only learn one way. For example, I'd been playing a horde match and I'd stayed over by spawn, the nice long walkway, no back spawns, the others had gone off to some platform, and I was there for 2 or 3 waves. Eventually one voted to kick me, it didn't go through, but the next wave they all died, I finished the wave and they rallied up in the same area. They used up the ammo box and started to voice ammo concerns and how we need to move, they opted to move over to a ledge with all of the spawns and we died within the first couple minutes of the wave. Though harsh, it's sometimes best to let folks sink, but do bring up what went wrong and why.