Marvel's Spider-Man
Marvel’s Spider-Man Side Missons Walkthrough: Tombstone. On the Move
Spider-Man decides to use the tracking chip found by MJ to uncover Tombstone’s plans
Starting location: Greenwich
Available: Complete Up the Water Spout Main Mission
Rewards: 1,500 XP
After you’ve completed the Up the Water Spout main mission, Mary Jane will let you know that she has brought the tracking chip from Tombstone’s garage to the lab where Peter works. This device is your chance to track down the albino villain and find out why does he use Alchemax chemicals.
Once the mission starts, go to the lab and find a Circuit Projects puzzle. You need to make a tracker to tail the Tombstone’s truck. The device needs a voltage of 5. You have two kinds of positive and negative circuits.

You’ll have to use all possible circuits: two +3 circuits and one -1 circuit. Don’t forget about some elements with unidirectional current and the already fixed blocks–they form the right way.
After making the device, leave the lab and follow the signal. It will lead Spider-Man to the truck driving down Midtown. Once you chase the car, throw off the driver and try to stop the vehicle by constantly pressing Square button.

Bikers are not going to let you examine the truck, they will immediately get to the place. There will be riflemen and hand to hand fighters amongst them, so take down the shooters first–the rest are not dangerous.
Once the battle is over, investigate the truck. You’ll find some empty chemical containers. What is Tombstone up to? You’ll find the answer in the next mission in this chain, Tombstone: What’s He Building in There.