convert to dex after that start bo2. start a zombie game. wait until it starts and you can move. now connect you ps3 with the injector v1 from dexmodderftw. now type in the file name maps/mp/gametypes_zm/_dev.gsc and click on load and inject. now chose the dev.gsc file. do the same with the clientids.gsc file type it in and inject the file. now end the game and start a solo game again. and it schould work