The pro is that it's free-to-play.

The bad news is that it's a painfully average hero shooter with nothing new to offer and that's when it actually works. The game launched after a hellish development cycle with some of the worst netcode I've seen in a shooter. The gameplay boils down to abusing the movement to essentially make yourself invulnerable to bullets because the game does an awful job at keeping your hitbox and your player model consistently in the same place. Your usual indicators of shit netcode are prevalent here as well, getting shot (and killed) after moving behind cover and delayed hit registration, free for everyone to experience regardless of ping.

This game was specifically designed to poach from Call of Duty's playerbase and that means it can't commit to a theme. It has to sit mid-way through being a hero shooter and a carbon copy clone Call of Duty for the largest audience capture possible and becomes just another soulless game that Ubisoft pushes out the door.

This is a review for the PS2 version of the game.

Talk about a step-down from the first game which was already gimped somewhat to run on consoles, Ghost Recon 2 on the PS2 is an awful example of a tactical shooter. There are barely any tactics here. You get simple orders to issue AI controlled squad mates, commands such as; covering fire, take point, hold position/regroup and a move command which only moves two of your three squad mates.
The maps are super short and very linear, leaving no room for you to out manoeuvre the enemy and forcing you onto a very set path intended by the developers. You move forward through a level, watching enemies spawn in on the radar that sits on the top right of your screen to let you know it's time to take cover behind a wall or some other object to fire back and hopefully kill them before you take any damage. The most frustrating thing about this enemy placement is when you move forward in a level and the game will spawn enemies in areas you have previously cleared.
The over-the-shoulder camera is finicky and locked to one shoulder only, unless you use the peeking to lean out from behind cover. The gunplay is still as good as it was in the first game and the shooting in the lone wolf levels especially feels powerful and satisfying.
If you want a Ghost Recon experience on the PS2, play the first game or Jungle Storm. This one does not cut it.