It wasn't that great but wasnt that bad either
Playing on the Normal difficulty on my first playthrough (that's how I roll) as the order of the snakes army it felt unfair that the enemy you play against has all their structures already built, but then again that would make sence since we're invading another territory. But starting out I invaded Semmo and was quickly overrun by the time I had built my defensive missle launchers and infintry barracks. Then, figuring out how to build my infintry I sent several dozen gunners towards the enemy base. But they were quickly gunned down by enemy infintry and by the time the main offensive line reached their base there was only 4 left and dying. I couldn't mount a second assult at the enemy because i was low on funds, but the enemy was still sending wave after wave towards me. Unless I'm mistaken the way the game runs is designed that we attack specific targets and regions first in a specific order.
If you make a possible sequel I beleive being able to give specific orders to units like "Dig in here, hold ground here, defend the base" would be a great tactical benefit so we aren't forced to follow a predetermined path.