Sure, it’s a good setting for a survival game. You build a map that’s part urban ruins, part relatively unharmed rural, and part Skynet infrastructure. It’s established in universe that Skynet has constructed vast logistical infrastructure to build, power, monitor, and transport its army, so you have a lot of creative freedom to make a map that’s a mix of bombed-out rubble and sleek automated facilities.
In Sniper Elite when you tag an enemy it gives you their inventory, alertness, and weapon type, but also gives you their name and a sentence or two about them from intercepted mail.
Sometimes they’re real bastards, but many of them are not and the intel is just mundane, funny, or sad.
There’s one guy in a level during the D-day invasion that’s planning to surrender to the first American he sees. I packed him in a shipping crate to keep him safe until the fighting had passed.