He tennis for Counter-Strike Source

A primitive grenade card.

There is a small room, partitioned by a low glass. Players are thrown grenades, like tennis players. Although the analogy of the card he_tennisс tennis court, exists only in the fevered imagination of its author. And, grenades on the floor from the explosions fly all over the map, which is very annoying.

In General, the map primitive, but for simple games grenades will do.