Follow the marker on the waypoint and go down the sewers via the entry grate you can see below. The area is located above the skyscrapers. It is a rooftop atop a heavily guarded block. The perimete is covered with snipers so use your detective vision by pressing LB and take note of their infrared sight, avoid their line of sights and take them out one by one before heading in to the marked location. Use the explosive gels on walls to provide misdirection, after the explosion quickly move to another area and ambush the incoming enemy as you prefer to. Use your jammer at the start and disarm as many enemies as you can first while being perched above, then focus on the other guys who still have dangerous firearms first. Along the way, utilize the Glue Grenades by tapping RT twice to stop the harmful steam. Glide across the gap that you will encounter at the path. You have to glide down then forward to do this. Then arrive at the Morgue afterwards.
Investigate and scan the body by following the onscreen prompts, as well as the computer. Backtrack to where you came in, head outside, and go to Bane’s HQ located outside which can be located using the waypoint at the map. Follow the snipers' lasers to track their location and take them out first before heading in. Use the explosive gels on walls to provide misdirection, after the explosion quickly move to another area and ambush the incoming enemy as you prefer to. Use your jammer at the start and disarm as many enemies as you can first while being perched above, then focus on the other guys who still have dangerous firearms first. Enter the area afterwards.
Face right and head to the door. Make your way through the vent, then stop the enemies from above. Again take them out separately and isolate everyone as always. Stun the Venom-users by using the batcape stunner and use the shock gloves to take out the group easier. Always take out the guards one by one. You have to isolate them so you will not get frustrated trying to deal with multiple guys especially the ones wielding firearms. Use the explosive gels on walls to provide misdirection, after the explosion quickly move to another area and ambush the incoming enemy as you prefer to. Use your jammer at the start and disarm as many enemies as you can first while being perched above, then focus on the other guys who still have dangerous firearms first. Also use the multiple batarangs for multiple knockdowns leading to multiple knockouts.
Create a makeshift raft by using the Glue Grenades in the water. Jump in and land above the glue raft, then use the batclaw to pull yourself by the hooks. Defeat the next combat brawl area and continue ahead. Concetrate all of your attacks on a big guy, super cape him by pressing B 3x, then punch away multiple times until you can activate shock gloves by pressing left stick + right stick.
Enter the gigantic door after the combat brawl and search the area. Afterwards, you can pick up the research item nearby, then go to the planning room.