tactical realism

Noun

 * 1) A style of gaming in first-person shooters (FPS), where realistic ("real-world") settings are simulated by the gaming engine (to the best of its ability) and players use authentic military tactics to accomplish goals in the game.
 * 2) The manner in which some gaming clans organize themselves. These clans adopt the rank, name and insignia of an actual combat unit past or present.