I didn't think so. Just stay in non-destructible cover and aim with blind shooting before you pop your head out and you shouldn't have problems. The bosses are the only part I'd say were truly difficult, but once you figure out what to do to kill them and how to avoid their attacks, you should be fine. Overall on the game, I'd say maybe 5-6/10; 8 is a massive exaggeration.
It's us against the world,
But we are armed with hope and heart,
We are nothing less than unbreakable.