I think it is an 80's or maybe 90's movie with a bunch of soldiers who fight a robot named omega one (I think) but it ends up killing everybody... it's very similar to the predator. Can you help me?

Robowar (http://www.imdb.com/title/tt0096000/)

That's it, thanks a lot... I had in mind that martin kove was in it but I was wrong. Thank you again.

You're welcome.