I wish I could contribute, but I cannot make maps as I am ♥♥♥♥ at Hammer, and my map design skills are only rough sketches on MSPaint. I wish I could make items but again, MSPaint sketches, and I can't do 3D modeling.

Also, I love that tank cart, and I hope there is at least one map posted with that tank cart, where it will attack and blow up parts of the map it gets close to. Like a bridge falling over, and opening up the rest of the level.

Anyway, good luck.