@ Brendan I dare you to top this in GMOD: http://www.youtube.com/watch?v=YQ5n9ZrYuHs&mode=related&search= If you don't want to watch it, it is a gigantic mech made out of half life 2 structures such as water towers and smoke stacks that fires large guns launching freight containers as projectiles and other assorted miscellaneous objects. It even has its own missiles made up of exploding barrels. At the end he even shows the thing walking.
