I am having trouble beating kill or be killed level. I need some tips.

The level after world war 2320, its called Kill or be killed. I don't know how to use links.

you kill

or you can also BE killed.
There is always that option.

Pretty standard level. Expand steadily in all directions early on and build a stack to take out the commander. He starts with a nice stack but you should be able to roll through it if you even encounter it.