Broken, full of glitches, do not buy.
The game and story is very loose, and not well fleshed out... Thats the game, really.
The AI and combat is un-relenting. All guns can fire on targets from a ridiculous distance allowing the enemy AI to shoot you before you see them. That works for the player as well, but the odds are not in your favor here. The AI can also see you through the dense jungle foliage with what I assume is their Jungle vision x-ray goggles. The weapons degrade over time. An interesting concept, but for the fact that the enemy guns never jam when they are firing at you, but the second you pick up their fallen firearms they are always jamming on you.
There are some major glitches that may occur during the game. A few glitches specifically deal with NPC interactions that are broken. Without a solution the game is unable to progress any further leaving the player stuck, and ending your game. This happened to me. Good luck trying to get a straight answer out of Ubisoft support, they have better things to do like counting your money.
Play this game if you must. I admit to having fun while it lasted despite a lot of weak elements in the game. However please be wise with your money and buy a better made product.