Signed. Although I haven't updated my gamercard on LIVE yet...cannot access my 360 until stuff is settled in court and I can go back home....damn roomate!
Also, I found that the Hive Mind on Impossible would shoot them fat bloated monsters(the ones that had the leapers and the swarm of apple turnover looking things inside them) so you would have to deal with them and the Hive Mind. When I played on Normal, the Hive Mind did not do this. Was it just me giving it a severe beating not giving it time to spew out minions or is it on only Impossible Mode that the Hive Mind that it spews them out?
Not sure, but I got all the achievements in the end.