It's all about Insurgency. A hardcore Tactical FPS. No Hud Display, no Mini-maps, no TDM, no Run&Gun. Insurgency is an Objective based game with limited spawns, where you are forced to work as a team to acquire objectives and win. It has a TvT mode and a COOP mode against AI. It's super fun, and highly addictive and it's exactly what the players in this community are looking for in a good, tactical game. It's also super cheap on Steam.
Take a look at Insurgency, I can assure you that nearly everyone will enjoy it.