cs_backalley_csgo by ExR v34-91+
Port by ExR for CS Source v34-91+ Backalley (cs_backalley) is a Hostage Rescue map featured in Counter-Strike. A community remade version was reintroduced in Counter-Strike: Global Offensive through Operation Vanguard, known as Backalley ("Back Alley" in-game).
Similar mods for CS:S