I doubt this will work because solo does not reward supply points, only in a lobby with others.
So if it is true and it has moved server side, unless we can use in a lobby OR there is a way around the modding, it's not possible.
Solo in the game currently it pointless because we get nothing.
You get practice for the multiplayer game.
Just run a file integrity scan on the game in Steam.
Quick Match is for online i believe. try to make a private lobby.