This is the 3rd new topic asking for this. You should really search if a question like this exists before making new topic. These commands are for a mod. The mod is applied to both server and client and then a B3 plugin is installed to interact with the mod. This mod is custom built and not released within the B3 community (the owner has not posted it here). As far as I can find, it was built by a deathrun server owner and CoD4 modder. If you play on a server with that mod, it's best to ask the server owner about it.
Sorry we wouldn't be able to help more...the B3 community do not create mods for CoD4.