I know you're probably not expecting anyone to actually bring up bugs with this addon, considering that it's just for lulz, but, well, here I am to do exactly that.

Anyway, this bug is exactly as the title says -- the Tiny Desk Sniper conflicts with Half-Life 2's Combine Snipers and ends up overwriting them, causing certain sequences with the Combine Snipers to break. :(

Pretty sure it can be fixed by renaming the Tiny Desk Sniper to something other than npc_sniper, but I'll let you be the judge for that