IMPORTANT: Because there are so many weapons on the map, projectiles may or may not show up. To fix this, take something like a Scourge of Fire Plasma Repeater and blow up a lot of the weapons. Then you'll be good to go, even when they respawn.
There are 108 custom weapons for your enjoyment. Around 108 weapons seems to be the cap before things get wonky and you stop seeing any projectiles, even from normal weapons. Weapon Pads affect the FX Budget and it's at 322% on this map. Have fun!