I just bought it in the sale also.
Take a quick look at the manual to learn some of the basic commands. Give yourself about 45 mins to an hour for the learning curve. I felt frustrated at first also but once I got the hang of it the game is awesome and very addictive. You will be glad you took the time to get the basics down.
Bought this in the recent Russian Invasion sale . I couldn't even get past the tutorial and I had a headache already . Yes, this has no base building and resource gathering, yay ! But it's still too much of a micromanagers paradise . I mean, click to get inventory, click to transfer weapon and ammo to individual soldier's inventory, click to move gun to hand, then click to Direct fire, click for each individual target, click to switch weapons, click click click . Too many clicks .
This isn't how real combat works. You tell a squad of guys to get into that building and hold the crossroads. That's it. You leave them to make decisions on their own, not tell them every single thing to do like they were babies .