It's a basic game, and the stapled-on split-screen multiplayer is the biggest testament to that. All three modes are basic and based on the single-player gameplay (to the point that two of them feature hordes of computer-controlled soldiers to mow down.) None of them are much fun.
What you're left with is a basic game that follows in the horde of footsteps of the series that has come before it: it's serviceable but uninspired, and won't do much for you unless you're a big fan of either of the source materials. Predictable, right?