Good old Shrapnel 4.1 bro. It's the " ancestor " of The Armory Mod, if i can say that.
You can't find it on the Nexus anymore so here's a link :
Full pack, require CaliberX. It's in russian, so it will fuck your text up, you can try that patch to fix it :
It's in spanish, but it's better than russian ( since russian character fucks everything up ).