Super boring opening, spongy enemies, no strategy required, just run and shoot. Game doesn't explain things then punishes you later like the charges you get, you'll need them later to open containers, so if you use them in combat, you won't be able to open containers, and you cannot backtrack either so the game design is super lame.
Some enemies are simply designed to annoy you and while there is some fun to be had, it gets boring very fast.
Dual weapons are a headache and require an extra button press every time you cycle weapons, no way to just set it to auto dual. Like why?! This is so annoying and makes life harder on purpose.
Also, they went full on vehicles, typically a bad sign in a FPS game, and yes, they all suck, and the battles suck and a total borefest. Enemy mechs are so weak compared to the foot soldiers, it takes the fun out of the mech vs mech fight completely as you just back and fire salvos of rockets while the enemies run at you from like hundreds of meters away.
3/5 if you want to kill a few hours and get it on huge discount.