Hey there everyone! I need help finding this movie I saw when I was little. I remember it was a post apocalyptic and that there was a small band of human soldiers alive. There were two enemies one was a robot/aliens (I can't remember exactly their origins were), they had a gun on one arm and hunted the humans. The second enemy was some sort of disease or something that went around incinerating/digitizing people. I remember the ending which a man used a time machine to go back and warn himself of the coming future (I believe he was a scientist and it was the soldiers mission to get him to that machine.) I hope someone can help I think it was a 80's early 90's movie. Thanks for any input!