[SoulWeaver16]

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:

gg_weapon_order "ak47, aug, awp, deagle, elite, fames, fiveseven, g3sg1, galil, glock18, hegrenade, knife"