This is the first time I've skinned the semi but here it goes:

I decided to make an RPG for the semi for all those people who like whacky stuff. The folder includes the semi file but also a tracer file with the rocket.

The other guns I made were the FN FAL, G36 and the XM8 (XM8 I felt looked odd but I'll upload it any way).

The RPG files can be downloaded here:
http://www.mediafire.com/?tfb98pkz173lfat
The Other Guns files can be downloaded here:
http://www.mediafire.com/?5779y09nk01ek07

Here's a screenshot of the RPG in different views:
http://imageshack.us/f/683/rpg7g.jpg/

From Left to Right; Top to Bottom - First Person and Third Person View; First Person Tracer; RPG in Weapons slot; kv6 Editor View of the RPG.

Btw, I couldn't get a suitable 3rd person view of the tracer as I was getting the pictures in-game, so it was rather difficult to take pictures as it's rather unpredictable when other people are going to shoot (unless directly at you)!

Make the impact of the rocket explode and I might consider thinking about it...

^ impossible
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I think the rocket should be 5 blocks height.
Something like this:
http://images3.wikia.nocookie.net/__cb20100724040105/deadliestfiction/images/a/a0/Rpg7.jpg

So it would look more like a rocket propeled projectile IMO. But good job anyway.