well
Its not bad, but its not good.
You definately need some new background music. Its just not NewGrounds-y enough.
Any maybe, you could have one of the Tankmen explaining these things, and instead of putting it in first person, write everything like you're writing an expository essay, rather than a first person account.
Also, a yellow/orange/grey/black colour scheme is needed to fit in with NewGrounds.
But, this is pretty informative.
4/5 8/10