you already have unlmited bombs as they regenerate over time. if u mean instant reload; it has been asked in the trainer topic on here.
I am currently looking at a way of modding the .mpak files ingame to see if there is a way to change reload times in there. if so will post back
⌐_⌐ ummm been there, done that, bought the tee-shirt...
Read the "BS:P mods" thread, lowering reload times, extending ranges, and many many other mods are discussed and the primary link is key to beginning on modding BS:P.