i saw a save for the challenge accepted achievement a while back but it was apparently patched so i decided to post mine. this save has all but one of the prerequisites for the CHALLENGE ACCEPTED achievement - ROID RAGE is the last challenge to complete (1/5) and i've already got the necessary shield equipped all you have to do is let it get depleted and kill an enemy with a melee. do that 4 times and the achievement will pop. as a bonus it's got all but one area searched for the BEEN THERE achievement as well (i beleive it's in Ardorton Station) so just go clear the area and the achievement should pop. this is the character gamesave NOT the savegame.sav and the ID's have been 0'd out so just replace with yours and you should be good.