The recent blog, Peace in the Era of Call of Duty really made me think about war games that dig deeper than simply a kill streak reward. The first game that came to mind was Spec-Ops: The Line and although I haven’t played it, I began to wonder if it did the war genre as...
Make sure you kill as many things as you can, for doing so fills up your time bar.
Pick up as many of the power-ups as you can.
Use your time-slowing ability wisely. There are sections in each level when it's obvious you're going to need it.