The last installment for the original Ghost Recon game, this expansion is the pinacle of the game. The AI is even more responsive and their movement makes for many surprises throughout probably making this the toughest the game gets, which is already at a do-or-die. The jungle settings are also quite interesting and allow for lots of cover for both your squads but also for the enemy. As always, approaching the targets is important in itself as it will probably alter the way you play out the rest of the mission.
This is perhaps the pinacle of not only the game Ghost Recon series but also as a tactical FPS genre. A missed shot here or there will probably cost you a soldier or two so be wary. This expansion should be in every library.