I keep on trying to switch my guns but when I do it never actually switches them. It just keeps the same gun as what I'm using. I just tried to switch to my L1A1 and it switched it back to the M16, AND ate my L1A1 so now I don't have one anymore.
For players having game problems: Go to your browser's "menu", then go to "tools", then go to "clear browsing data", then click "clear browsing data", then log in as a guest, then log in with your profile. If it doesn't work, keep logging in as a guest, and then into your profile and eventually you will get into the game.
Maybe the internet goblins in your part of the world are turning the gears a little faster recently? :)