Forum:How to install a certain patch

Note: this is only for splitscreen use. not online (PS3) ok so i've deleted my patch for mw2 for the ps3 so i could use the unpatched models in splitscreen. I used a mod so i could get lv70 10th prestige right away, but the problem is... i cant use the mod on the lowest patch.. And if i tried to update it... the models will b patched... any suggestions