A step down from the first game in many ways. The AI feels even less consistent and you'll often wonder how someone saw/heard you. Some cool setpieces but figuring out the very specific way you're meant to play them is frustrating to say the least.
The HUD is also kind of disgusting now, making it difficult to zone your crosshairs properly. It's clear this was made by a different team to the first while they were working on the much superior Chaos Theory.