free-for-all: Tested
self setclientdvar( "scr_dm_score_deatht", 2516000 );
self setclientdvar( "scr_dm_score_suicide", 2516000 );

team deathmatch: Tested
self setclientdvar( "scr_war_score_deatht", 2516000 );
self setclientdvar( "scr_war_score_suicide", 2516000 );

search & destroy: Tested
self setclientdvar( "scr_sd_score_deatht", 2516000 );
self setclientdvar( "scr_sd_score_suicide", 2516000 );

capture the flag: Tested
self setclientdvar( "scr_ctf_score_deatht", 2516000 );
self setclientdvar( "scr_ctf_score_suicide", 2516000 );

headquarters: Not tested
self setclientdvar( "scr_koth_score_deatht", 2516000 );
self setclientdvar( "scr_koth_score_suicide", 2516000 );

domination: Tested
self setclientdvar( "scr_dom_score_deatht", 2516000 );
self setclientdvar( "scr_dom_score_suicide", 2516000 );

sabotage: Not tested
self setclientdvar( "scr_sab_score_deatht", 2516000 );
self setclientdvar( "scr_sab_score_suicide", 2516000 );

demolition: Not tested
self setclientdvar( "scr_dd_score_deatht", 2516000 );
self setclientdvar( "scr_dd_score_suicide", 2516000 );

also, be sure you have this:
Self setclientdvar( "scr_game_suicidepointloss", 1 );