I wish I could do something with this. Some of the action sequences are pretty good and one of the only things I likely wouldn't change with a redraft.
But I've thought about re-writing this without the Aliens or the Predators, and quickly realised there's almost nothing else going for it plot-wise. Which has made me somewhat re-appraise how I approach stories like this since; remove the novelty item, and if the plot suddenly seems disposable, start rewriting.