While I was finishing up my forged map I decided to edit my flood gametype to suit my map. I discovered a HUGE issue. You can't change the floods weapons. This is only a issue because it also limits forging as well. People are not going to build cool original maps because they can't give there Zombies the right equipment. I like the idea that they give you the flood skin but we should be able to take it off. At the very least 343i should release a title update with the option to change the weapon of the infected.
Here are some famous game modes that could not exist without letting your infected character hold a weapon besides the Energy sword/Claw.
Train: The survivors spawned in a long line of train carts that the zombies had to knock down or kill people in. The zombies had Rocket Launchers so it was challenging for the survivors to survive.
Duck hunt: The goal of this was to evade the zombies sniper rifle fire until you reached a safe zone where you could kill him. The zombie had a Sniper Rifle in this mode.
Halo: Survivors would spawn on the edge of a halo ring an would drive in vehicles all the way around a ring, while evading sniper fire from the zombie high up in the sky. When a survivor reached the safe zone he would have a chance at killing the infected.