For the marauders, theres 4 lines that start with 'marauder', but one is the parade varient that we dont need to mess with. For these units you're looking for
Again, delete the 2, but not any of the commas, so it shows
Lastly, the turrets. These are a little bit finicky because theres lines for the non-buildable and destroyed turrets as well. The ones we want are MG_Turret, Rocket_Turret, and Grenade_Turret.
For MG_Turret, look for /,1,,10,/ and delete the 1 (not the 10), so it shows /,,,10,/
For the other 2 turrets, look for /,2,,20,/ and delete the 2, so it shows /,,,20,/
Save your changes, and that's it, now units and turrets no longer require any war support to field! You can undo your changes and reset the game to vanilla by using steam to verify your game files