try this
CVAR amx_respawn <0/1> 0 = block respawn 1 = respawning allowed
Code:
#include <amxmodx>
new CVAR_Respawn;
public plugin_init()
{
register_plugin( "Respawn blocker", "1.0", "Greenberet" );
CVAR_Respawn = register_cvar( "amx_respawn", "1" );
register_clcmd( "respawn", "cmdRespawn" );
}
public cmdRespawn( Client )
{
if( get_pcvar_num( CVAR_Respawn ) )
return PLUGIN_CONTINUE;
return PLUGIN_HANDLED;
}