Alien Showdown: The Day the Old West Stood Still

So this was a movie made with no budget, where you can see laughable CGI effects thrown in. A discount Predator lands in the Old West, and fights a Low-rent Schwarzenegger clone in the wilderness who is being chased by some bounty hunters, just so we can have something to pad out the time. A "Good" Alien, who looks like the stereotypical Gray, informs him he has to stop the Discount Predator from signalling back that Earth is full of resources. The movie intersperses with a modern day scientist babe who provides exposition, and is informed by the same Good Alien (or a member of his species) how to reset the warning beacon to keep the bad aliens away. She is able to do this without getting killed, unlike Discount Arnold, who dies after some fistfights with the alien. Discount Arnold was also the producer of this film, so he gives himself top billing. The whole thing looks "Student Film", which is the only way I can explain it. It apparently has several titles, which is never, ever a good sign.