Basically if you just get the official 3.55 ps3 update and overwrite it , it's not a problem , It's really nice of a lot of sites that give out the original eboot's , beacuse the whole true blue eboot will not work (Duh! :3 , that was me stating the obvious because i had TB as well. But it's great the jailbreak scene started with Dongles which lead to 3.55 CFW , then dongles came around again which lead to the new CFW's and it's really handy to back games up that we buy , some download :3. to each his own but i can't see you having any problems with getting the new CFW working. Black Ops II is awesome , although , i'm not good enough with the zombies lol , Resident Evil still owns the zombie genre of games though. Hope it works out for you :3
That was for BGMaxie by the way