Skins to load to have a better Game play experience :
Generally it's better to put main skin folder to your \Saved Games\DCS.openbeta\Liveries\Aircraft folder
If it doesn't exist you can create it 

For Iran-Iraq war :


- IRIAF KC-135MRPS : https://www.digitalcombatsimulator.com/en/files/3305050/  rename folder in IRIAF only

- Iraq SA342M Gazelle : https://www.digitalcombatsimulator.com/en/files/1966444/

- Iraq Mi-17 (Mi-8MT) : https://www.digitalcombatsimulator.com/fr/files/722478/


Don't forget to activate :

- DCE_Missionscript_mod

- Game-DCE Iran-Irak war PG-Mods

Which should be in your OvGME (read PDF). The later one will provide you skins and authorize planes for Iraqi air force... 