Mission 4 GDF

[Sekiei]

Just bought the game and I read comments about mission 4 is hard to pass, I set the difficulty to hard and loaded in, finished the stage in 40mins.
I find it pretty hard to build a nicely composed army to fight through the stage and clear out all SAM sites especially the afterwards you need air lifts to the cliff.
But defending the base was fairly easy imo, the AI aint that smart to sneak through your base and destroy everything, you just need to spam engineer towers and load them with drone operators and pair it with gatling and grenade turrets, then all waves should be unable to penetrate through until the last wave cuz there are many bombers

[Gin Kenshin98]

I read a post saying to prevent the 'shadow' reinforcements from coming from outside the map, you just need to place a unit where they spawn from to reveal the fog of war, then the reinforcements will stop spawning.

[CosmicDan]

That's funny, meanwhile Mission 4 of Tempest Dynasty was the easiest so far on Hard (just turtle it, build up decent base defences and then eventually steamroll them). Though I feel like Dynasty is possibly an easier faction since you don't need to fiddle with so many abilities.