yea... i remember this. playing gmod was one of my biggest dreams, but my mom would not let me get it. this video inspired me to wanna get this game, it really sparked a happy fire in my childhood
you should do neurotec, its a addon that adds a bunch of tanks, bombs and weapons. its not one addon, its a pack the original base 1 was removed due to a backdoor, but the best one i found was a upload by fan.