CSB LO3 is the match-start ritual: amx_lo3 issues three sv_restartround restarts with a configurable delay and an on-screen RESTART n/3 countdown, then flashes LIVE! LIVE! LIVE! with a sound when the match goes live. amx_lo1 is the single-restart variant. The restart itself resets score and money through the engine.
amx_lo3 (3 restarts) and amx_lo1 (1 restart).csb_lo3_delay.csb_lo3.sma and copy it to addons/amxmodx/plugins/.plugins.ini and change the map.