self maps\mp\gametypes\_rank::setCodPointsStat( 1337 );
or in case they would add checks here: direct function:
self maps\mp\gametypes\_persistence::setPlayerStat( "PlayerStatsList", "CODPOINTS", 1337 );
and to keep your other stats clean:
lifeTimeEarnings = player maps\mp\gametypes\_persistence::statGet( "LIFETIME_EARNINGS" );
player maps\mp\gametypes\_persistence::setPlayerStat( "PlayerStatsList", "LIFETIME_EARNINGS", lifeTimeEarnings + 1337 );
player addRecentEarningsToStat( 1337 );