ther is something too: the atmosfear.
Machines has its own atmosfear, programmers had really succeeded in creating this.
To me, that would have been the first thing to develop in "Machines2":
_ adding something like a planet life: climat that changes, influence of the war on the environment, animal life and maybe even vegetal life (to create something like an environment influence on machines due to humidity, pollution etc..).
I don't remember the music, i remember i was enjoying the "Wasp ooooon line"