= sums it up nicely
I quick search and land in early wave 2 on Reactor / Geth / Gold. Looks like 2 others have spawned in at the same time I did.
Wave 3, we get an escort, it starts at the back of the lab, heading thru the reactor and to the starting zone. I get there first and activate it, all the enemies spawn at the lower portion closest to the back and I'm thinking "Hey, this is ideal, they will circle around the back behind us while we easily escort the drone, piece of cake"
One of the 2 players who joined with me tries to run to the drone thru the whole spawn and gets downed, the second player follows them to try and revive and also gets downed. OFC neither uses a med gel and both get stomped on, leaving myself and the host. Still not too big a problem, except the host doesn't join the escort circle, instead standing just outside it to the rear, shooting all the enemies who are approaching from behind!!
So now i'm escorting the 1/4 speed drone, while enemies start spawning and attacking thru multiple openings of the reactor (which the drone is crawling thru). I'm killing sh!t, lots of sh!t, and using ops packs and end up using 2 gels also (not a lot of cover in that space ya know). Meanwhile the host has not rejoined the circle, finally it gets to the other side of the reactor and there's the Prime (whom the host managed to kill at the back of the map, good work *sarcasm). I leave the circle to take cover and engage the prime, at this point i'm quite pissed at the sheer incompetence; when the geth turret takes me down I decide not to use another med gel to even see if the host will try to complete the objective. At that point the host did try for the escort briefly, but saw the prime and ran away .. I watched the clock tick down to zero and mission failed. I bailed before the score screen.
Still annoyed, I do another quick search and happen to land in the lobby of one of my FLers YAY! Razer057 is a good teammate. So awesome, it'll be a good match .. during the load screen 'you have lost connection to the servers' sigh .. as I don't have much time I do another quick search and land in the original lobby of incompetence I bailed from ! 
I turned off the game. Sad day, first time I've complained of a bad pug in a couple years 