Alright, seeing as I am making the Pack-A-Punch mod using kettenkrads weapon as a base.
I need a little help on LUA, i've never ever used LUA so don't blame me for knowing nothing
Now this isn't a request for some one to do it, this is more of a request on setting me on the right track to do the script.

Now what i'm trying to do is make a weapon fire rockets like mini bullet sized rockets, now I want to know if this is possible in CC. If so would anyone mind setting me in the right direction?

You don't need Lua for that.

There's nothing too challenging about this, just take the basic rocket from Coalition.rte and resize the sprite (and do the new offsets for the sprite).