My dad always say's 'meh, shooters' and for a while I thought he was completely wrong. But now after I've played a few more shooters I understand what he means every shooter is the same. You are super soldier, with gun, you must save world and you must kill 3000000000 people in the process. Yes I'm looking at you Ghost Recon - Future Soldier, Brink and Syndicate. All the same get gun kill a billion guys and win. The End.
In terms of these three I don't really rate them at all. They all seem boring to me. The only one that partly is good is Ghost Recon and that's only because you don't have to kill everybody. Instead of 3000000000 people it's only 1000000000. I give Syndicate and Brink a 6/10. Ghost Recon gets a 7/10. All boring. In my opinion just leave them it's no big deal if you haven't played them.