You could use Amxmodx function
/config/maps/
Whether all maps de_
PHP Code:
/config/maps/prefix_de.cfg
Or just a specific map, example: dust2
PHP Code:
/config/maps/de_dust2.cfg
And there you paste the line:
Code:
gg_weapon_order "ak47, aug, awp, deagle, elite, fames, fiveseven, g3sg1, galil, glock18, hegrenade, knife"