Love to see classic XCOM style combat finally! It is very underrated.
Notes:
-enemies shoot at me then move closer to me instead of shooting again or moving away sometimes
-grid feels too big
-after shooting when I click again the charater moves instead of shooting again. This move can't be cancelled either. Very frustrating.
-The 1shot/3shot setup is very classic and it's alright but maybe you could experiment with Assault rifles shooting 5 and machineguns shooting 10 etc, etc. Just a suggestion.