The endings
Draft a Constitution
1. Find City Hall and get the required # of blocks.
2. Reclaim City Hall
3. Draft it.
Defeat the LJG
1a. An escapee will come to your city. Say Yes.
1b. Reclaim the subway.
2. After several days, you will be ready to attack the LJG. Ask for the Riff's help.
3. You may now start your mission.
Get to the choppa!
1. Reclaim the heli-pad.
2. The chopper will explode.
3a. Trade with Gustav for parts.
3b. Research electricity in the lab.
3c. Have someone read a heli manual.
4. Repair the chopper.
Cure Zombism
1. After your 1st research, a crazy scientist will come to your city and ask to use your lab for secret research. Accept.
2. A week later, he will ask for one of your scientists. Accept.
3. You will get a request to get a sample from a Zombie hoard. Send someone to a block in the horde's path.
4. Wait for him to reach Lvl 10 in science. Multiple hordes will come.
5. An explosion will happen. Investigate it.
6. Continue his research in any lab.
Easy points: Drive the wrong way, and then jack cars RIGHT before you crash into them, you should be able to destroy your old car, while entering the car that just totaled your car. You'll get both Incoming and Takedown points from this, making the challenge a breeze.
Unfortunately, it is NOT possible to post this game in chat, due to the sheer awesomeness for it.
Or maybe it's just because the link is too damn long.