Right then. Umm, I'd say shell the red blobs to force separation from the main red front. Keep up the shelling for as long as possible, force the enemy into fortifications. Meanwhile, make sure you use the special forces for guerrilla strikes, chain of command disruptions, sabotage, recon, y'know, generally fucking up the reds from behind their lines.
Perhaps, when the blobs are gone, press hard on the airport to deny air support from there. Since you have artillery and a it's basically a wide open field, should be a piece of cake. Shell the advancing front on the right of the capital to make them slow down, if not change tactic.
Droned seems to be fine, so I don't know why you'd change that right now.