General tips:

• Press X to skip all the dialogue.
• Strafing is considerably faster than running normally (WA or WD).

First day you spam R to call everybody fast. Be careful at the first survivor because if you get your tablet too fast the tablet will glitch, wait for them to get to the checkpoint. The first survivor you have to press the RED SKIN symptom and then send them to quarantine. Liquidate the remaining survivors and go to sleep.

Second day go to the quarantine right away and send the survivor to survival block, then go straight to the table where you call in survivors and grab flashlight, scanner. Press 1 to equip scanner and call everybody in and liquidate, go to sleep.

Third day go towards the warehouse and press B , press replenish and buy one of each. Press E to auto take fuel and food, pick up the cart, go to the block , to the generator and touch with your cart the platform with the gas cans, do the same for food and go to sleep. After that go to the laptop and complete the zombie attack. Kill the farthest zombies first because you can kill all stacked zombies at the wall in one reload. You can also switch weapons using mouse wheel while it's reloading.

Fourth day grab the stethoscope from the table, press 2 to equip in then call everybody in and liquidate and go to sleep.

Fifth day get the Thermo-Pulse-Meter from the table, call everybody in and liquidate. After the last survivor go straight to the laptop and complete the evacuation event. Make sure to kill the farthest zombies first, so that when the car is repairing the ones closest to the cars stack up and you can finish the event faster.

Sixth day go to the table and grab the pistol and Syringe analyzer. Press 4, 5 and then 4 again fast and call every survivor in. Use the gun to kill every survivor immediately. Sleep after you're done.

Seventh day kill every survivor using the gun then go to the laptop. Make your drone lose signal 3 times by falling on the ground.

Congratulations, you've just finished your first run! Feel free to practice as much as you like. Good luck!