thanks for all the comments guys, they mean a lot.
Heres a tutorial of how to mount the weapons:
All you need to do is interlock a weapon holder into the wall and make it sideways. You also need to make the holder face the right way and make it turn a little inside to where you want to put the weapon. Then all you need to do is put the weapon on the wall where the holder is until you feel it "stick" and wallah.
p.s. if you want to understand more, if you've downloaded the map, then just delete the wall or make it not spawn at the start and you can see it beter.
oh and BTW, Kad, you should really know that you aren't allowed to directly say fail because its against the rules and to save you time here is the link:
http://www.forgehub.com/forum/announcements/6933-full-circle.html