Oh I figured it out you have to click on the one monster like person. Now I am stuck on lv.7. I am unsure how to get the mouse to the bottom without hitting the red lines.
Is there any side clues other than the three I found? 1st note, Frank and gore heading to 55th drive, we'll go to 11th street to await reinforcements, and finally I found a cannister.
The take cover stage where you first get the lewis guns on allies seems very difficult. Enemy took out my three lewis guns at full health in a trench with one round of fire support.
I beat on day 26. Seems the trick is to fire the catapult downwards, near the pause button. Otherwise you will not get enough height and will get zero money for a long time. Once you can consistently get 200 money a day the game speeds up quickly.