Most likely the last update of this map.
Changed the location of the sniper hint at the front.
Added "wave_start_relay_noreset_1b" and "wave_start_relay_noreset_2b"
These relays spawn bombs that don't reset. 1b spawns 1 bomb and 2b spawns 2 bombs.
Removed wave_start_relay_endurance as it was identical to wave_start_relay_1b.
No mission changes.