Update, everyone;
I changed a few things: The pulse rifles now have a standard reload animation and fire their secondary attack straight, like it should be. The Striders have new armor values, that means soldiers equipped with the RPGs from this addon will fire at them. And finally, the Portal Gun now fires without that typical grenade behavior.
XXX-It'll take some time before it's uploaded somewhere, but it's good to go, basically.-XXX
-- New link's in the top post.