[GWMPT]

You can easly code a half of the gamemode on pawn, and the other half on the plugin.

Example:

pawn Code:

stock GetPlayerName(playerid)
{
      PLUGIN_GetPlayerName(playerid);
}

then, on the plugin side, you script the function "PLUGIN_GetPlayerName" with the sampgdk or the plugin sdk.

OR, you hook the callbacks and do the code on it