Lol guise lets make a new custom engine with perfect liquid physics, perfect physics, virtual reality that track movements instead of pointing to move, ragdoll physics, civilian interaction, Perfect RP variables, no lag, amazing graphics 10x better than Crysis and a 100% destructable environment.
Also have bricks that you can set to move to other locations like func_tracktrain in valve hammer editor, but have the ability to build ontop.