A portion of the players (30 to 70%) barricade themselves on a hill, building, defendable position or even a relatively open area and once set up can not advance.
And the rest of the players are the attackers and must attack.
Can be played with one shot one kill, or with both teams having respawn points and the defenders have with only 2 respawns eg: 3 lives, and attackers have unlimited lives. Eg: attackers will always win.
Fun level:**