Are you talking about this modern warfare mod;
Modern Combat
If it is, that is a multiplayer only mod.
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You could try this singleplayer mod;
Price of Terrorism
May need 1.17.5 patch >
Patch 1.17.5
I tried it with 1.17.5 patch but keep getting error for not being able to
"spawn arab_building_1" so it will not work for me.
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Here is a another modern war mod for Men of War;
[MoW] Grosnia 1992 - single player map
I have not tried this 1 yet.