Near the end of the third chapter of the game, Batman will be advised of several Watchtowers that have been set up all around Gotham. There are twenty-one of these Watchtowers around the three islands, and each one is protected by gun emplacements and several soldiers.
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When taking out the twenty-one Watchtowers settled across Gotham, you’ll need to sneak past enemies, and destroy a central command console using your Explosive Gel. Shutting each Watchtower down will score you an additional WayneTech upgrade point.
Location: Founders’ Island – Ryker Heights, close to Stagg’s Airship Alpha
The first Watchtower you’ll have to complete is actually located right next to Stagg’s Airship. There are around five armed guards, a Boa Sentry Drone, and an additional soldier with a tracker that can pick up on your Detective mode.
Location: Bleake Island – Chinatown, west of Urbarail Station
This tower features several gun emplacements around the outer edge of the building. Two unarmed soldiers also patrol the area inside. Glide towards the window, then dive kick the nearest enemy before taking out the command console with your Explosive Gel.
Location: Bleake Island – The Cauldron, southwest of traffic circle
This Watchtower is guarded by seven armed soldiers, as well as a Medic. Grapple to the highest point in the southern area of the tower, then drop each soldier you can using your Silent Takedown, and Feat Multi-Takedown combat attacks. Once everyone is clear, divert your attention to the command console and take it out.
Location: Bleake Island – The Cauldron, opposite police station
The fourth Watchtower is protected by seven thugs, two Brutes, and three gun emplacements, and is a bit tricky to takedown. First you’ll want to use the Disruptor to take down the two armed thugs patrolling the area, then use your Remote Hacking Device to sabotage the sentry turret before attacking the rest of the enemies. Just remember to be away from the turret within thirty seconds when the hack wears off. Once the area is clear, take out the command console and move on.
Location: Bleake Island – The Cauldron, roof of Sionis Industries
This Watchtower is located on the roof of Sionis Industries, and is protected by five criminals, a Boa Drone Operator, and a Mingunner. We suggest using your Silent Takedowns to pick the enemies off one by one. It is also worth noting that two of the enemies at this Watchtower are immune to your Detective Mode, and thus you’ll need to find them the old fashioned way. Once the place is clear, and the Minigunner is down, take out the command console and call it a day.
Location: Miagani Island – Kingston, roof of Penguin’s first Weapons Cache
Located near Mercy Bridge, this Watchtower is protected by eight highly-armed soldiers and a Minigunner. The best thing to do here is deal with the soldier with the Detective mode Jammer, and then take the others out one by one until only the Minigunner is left standing. Now take out the Minigunner and destroy the command console to finish up this Watchtower.
Location: Miagani Island – Kingston, roof of Bank of Gotham
This Watchtower is protected by two gun emplacements along the northeastern edge. Eight soldiers, two Combat Experts, a Medic, and a Brute also patrol this area, so be careful. There are also three Weapon Crates that you can sabotage if you need to. Take out the armed soldiers and the medic first, then focus on the others until only the Minigunner is left standing. Now take him out, then destroy the command console using your Explosive Gel.
Location: Miagani Island – Kingston, north of Wayne Tower
To find this Watchtower head over to the eastern side of Grand Avenue Station, and keep an eye out for the four gun emplacements scattered around the area. The soldiers here are unarmed, however, there are two sentry turrets guarding them. Take out the turrets first by destroying the console on the eastern tower, and then focus your attention on the enemies. Once everything is clear, take out the command console and move on to the next Watchtower.
Location: Miagani Island – Kingston, apartment building east of the hospital
Three gun emplacements, five soldiers, and several Shock Mines protect this next Watchtower from harm. First you’ll want to lure the soldiers away from the gun emplacements so that you can take them down without getting shot a thousand times. Once the soldiers are down, blind the turrets, and destroy the central command console.
Location: Miagani Island – Kingston, north of Grand Avenue intersection
Grapple up to the middle of the walkway on the northern side of Grand Avenue’s intersection, and then blind the two gun emplacements here before destroying the command console.
Location: Miagani Island – Bristol, roof of hospital
Located on the rooftop of Elliot Memorial Hospital’s western tower, this Watchtower is guarded by several enemies and gun emplacements. Grapple to the very top to find a console that you can destroy the take out two of the gun emplacements, then drop down to the enemies below. Use a Fear Multi-Takedown to even the odds
Location: Miagani Island – Bristol, Botanical Gardens
There are two Gun Emplacements placed on each corner of the Botanical Gardens. In order to start the brawl, we suggest taking down the Boa Sentry Operator, then dealing with the other enemies. Once the Watchtower is clear, turn around and take out the command console.
Location: Miagani Island – Bristol, east of Salvation Bridge
This next Watchtower is located on the rooftop overlooking Salvation Bridge. Here you’ll find two Gun Emplacements situated along the north and southwestern corners. First use your Remote Hacking Device to blind the turrets, then take down the five soldiers and Brute that are left protecting the Command Console.
Location: Founders’ Island – Drescher, next to Perdition Bridge
There are six criminals guarding this Command Console, as well as an automated turret. We suggest taking the turret out first, then dealing with the thugs before you take out the console.
Location: Founders’ Island – Drescher, docks north of Penitence Bridge
First examine this Watchtower from a high rooftop to find that it is guarded by seven unarmed soldiers, as well as two Brutes. Drop down into the area and take out the enemies, before dealing with the Command Console.
Location: Founders’ Island – Ryker Heights, roof of Cale Anderson building
It’s time for another challenge. This Watchtower is guarded by four Minigunners, two Medics, and two Stealth soldiers. First take down the medics and Stealth soldiers. Once they are clear, it’s time to deal with the big brutes and their miniguns. Take them out using the Counter technique, then deal with the Command Console before leaving the area behind.
Location: Founders’ Island – Otisburg, south of Penitence Bridge
Approach this Watchtower from the northern or western side, and take out the turrets protecting the southeaster edge of the area. Once the turret is down it’s time to deal with the six unarmed soldiers, and then take out the Command Console.
Location: Founders’ Island – Otisburg, roof of GothCorp
Protected by seven armed soldiers, a Stealth soldier, and a Medic, this tower is a bit dangerous for low level players. In addition to that, there are also several Gun Emplacements on the southern side of the building. Use Silent Takedowns to take out the soldiers, then deal with the Command Console before leaving the area behind.
Location: Founders’ Island – Otisburg, east of Port Adams
There are two Gun Emplacements, as well as two armed soldiers and a Boa Sentry Operator. We suggest taking out the Operator first, and then you should be safe to deal with the other two soldiers, and take out the Command Console.
Location: Founders’ Island – Ryker Heights, south of Wayne International Plaza
This next Watchtower is protected by seven soldiers and a Brute. We suggest making use of the crane high above the area to examine the Watchtower and find the best route for your skills. Once you’ve learned the enemies’ patrols, drop down into the fray and take them out. Once the area is clear use your Explosive Gel to take out this Command Console.
Location: Founders’ Island – Otisburg, abandoned building west of Fire Station
The final Watchtower of the game is protected by several Gun Emplacements on the backside of the Fire Station, as well as three soldiers, two Combat Experts, and three Medics, and a few turrets. First, take out the turret and the Medics, then deal with the rest of the enemies. Once you’ve cleared the area use your Explosive Gel to take out the final Command Console, then apprehend the Militia Leader and take him back to GCPD for lockup and detention.