Gunrunner

Miagani Island – Kingston, Harold’s Repair

During Chapter 3 of the main path, Batman meets up with Nightwing at the Ranelagh Ferry Terminal, where he is informed of Penguin’s intent to smuggle weapon caches in from Blüdhaven. Clear out the six thugs before firing the Disruptor at the first van. Knock on the back door and they speed away. The Batmobile cannot be used, as it spooks the thugs, so grapple and glide close behind the vehicle. The truck’s position is shown when behind buildings as long as it does not get too far away. Eventually, they lead Batman right to the weapons cache, just down the street from where the chase originated. The shutter is locked behind the thugs and soldiers guard the only way in on the rooftop.

Grapple to a high vantage point and survey the scene. Six armed hostiles and two Sentry Guns must be dealt with. Go ahead and use the Disruptor to sabotage the three closest firearms before proceeding. Disable each turret from behind when the area is clear. Eliminate the remaining guards and enter the hatch inside the roof access.

Twenty hostiles and Penguin himself guard the weapon cache below. Fortunately, they are all unarmed. Find the vent on the wall and slide down into the floor grate. Move behind the boss and interrogate him. Counter the optimistic soldiers when they strike, including the two who grab guns from the weapon crate. Nightwing joins Batman, starting the brawl with the remaining thugs. Switch between the two vigilantes and use the Dual Team Takedown whenever possible.

Once everyone has been dealt with, enter the vault and spray Explosive Gel on the highlighted crate in the back. Exit the room and interact with the door. With the vault closed up tight, move away from the blast area and detonate. Exit the building. An ambush has been set up for Batman. Pull out the Batmobile Remote and drive the vehicle up to the top level of the parking garage across the street and eliminate the Sentry Guns and soldiers.

Bleake Island - Sionis Industries

The remaining four weapon caches are dealt with in the same manner. After exiting Stagg’s Airship, at the start of Chapter 5, select GunRunner from the Mission Select to contact Nightwing. He gives you the next North Refrigeration truck location. Find an unprotected van at the GunRunner waypoint. Hit it with the Disruptor’s Tracker Ammo and tap the back door to send it on its way. Follow it to Sionis Industries. Open the door on the southwest corner of the building and use the Remote Hacking Device on the security console to open the main gate. Be careful to not stray too far inside, as two Gun Turrets protect the room. Switch to the Batmobile Remote and use the Heavy Cannon to destroy the weapons.

Move around to the left, grapple through the hatch above, and throw the switch on the wall to open the rooftop shutters. Return outside and grapple to the roof. Smash down into the room below, where a big group of thugs and a brute await your arrival. With help from Nightwing, take down the group. The Disruptor is useful against the thugs. Plant Explosive Gel on the weapon crate inside, close the vault door, and detonate the cache to earn two more WayneTech Upgrade Points.

Founders’ Island – The Grinning Fishmonger in Lower Tier

Repeat the process again. After dropping Ivy at the Botanical Gardens, select the GunRunner mission to get the next North Refrigeration truck location. Eliminate the group of thugs around the vehicle, shoot it with the Tracker Ammo, and knock on the door. Tail the van to the northwest corner of Founders’ Island and down into the old, lower level of the island.

Grapple to the small balcony above the Grinning Fishmonger entrance, but do not climb up. Instead, perform a Silent Takedown on the sniper who guards the exit and step inside. Move up the steps and slide down the vent to get underneath seven thugs. Continue beyond the weak wall at the other end of the room, place Explosive Gel, and then move next to the other two guys. Detonate the gel and then take out the remaining two soldiers with Fear Takedowns.

Pull the vent cover off the side wall, climb inside, and follow the path to find the weapons cache and more of Penguin’s thugs. Move out on the beam and target one of the guys with the Fear-Multi Takedown. Drop as many as possible with the fear and assist Nightwing in taking down the thugs and brutes. Place Explosive Gel inside the vault cage, close the door, and detonate the charge.

Bleake Island – Below Chinatown, in Sewers

After dissipating the fear toxin, get the next North Refrigeration truck location from Nightwing and proceed to the waypoint. Knock out the thugs who guard the vehicle, tag it with the Disruptor’s Tracker Ammo, and knock on the door. On Bleake Island, follow the van into the sewers, just east of the Perdition Bridge and follow the route back to the bollards, which block your path. Take out the soldiers ahead, hop out, and grapple up to the walkway above. Find the control panel and activate the switch to lower the blockade.

Use the remote for the Batmobile and face the right wall. Fire the Power Winch at the anchor point on the wall, pull back to create an opening, and grapple inside. Continue up the shaft and drop through one of the grates to begin a brawl with Penguin’s men. Nightwing does not show up for this fight so Batman must take the pack down on his own. Place and detonate Explosive Gel inside the vault. At that point, a monitor reveals that the villain has captured Grayson.

Founders’ Island – Otisburg, Amertek Building

With help from Nightwing’s tracker, Alfred finds his location in Otisburg and adds it as a waypoint. Find the Amertek building on the east side of Otisburg and grapple to the top of the opening soon sign displayed on the west side of the roof. Seven armed hostiles guard the entrance, including a Detective Mode Jammer. Silently take out the sniper below and then survey the rooftop. Eliminate the rest of the group, rip the cover off the yellow control box, and hop down the elevator shaft. Enter the elevator car and continue to the very bottom of the shaft. Climb down one more level to find Penguin and Nightwing.

Find the opening ahead and step onto a beam in the back room, which is guarded by a Gun Turret. Use the Remote Hacking Device to disable the weapon, hop down, and destroy it from behind. Pull the vent cover off the far wall and follow the vent shaft into the floor. Move past Nightwing, hop out behind the weak wall, and rescue him.

Switch between the two vigilantes as they eliminate the group of thugs and brutes. Spray Explosive Gel inside the final vault and close the door. Penguin has grabbed Nightwing and placed a gun against his head. After the villain questions who the “Flying Graysons” are, perform a Dual Team Takedown on him and then detonate the gel to destroy the last of the weapon caches. Drive Penguin to GCPD to lock him up and collect three upgrade points.