Payback - The Darkness 2
Crawl towards the thug and release the darkness when prompted. After slaughtering the thugs, talk to Vinnie. You have the darkness unleashed already. If you haven't played the first one yet, you should avoid the light sources at this hurts the darkness. You can consult the controls layout as well.
Head to the alley and tap LB to pick up glowing objects. For starters, grab the obvious pile of junk to get a metal rod, aim it to the target and throw it to impale them. Press RB to use the demon arm slash and destroy the wooden fence ahead. 0
Once done, continue forth and fight your way through several enemies. The darkling will prove as a useful decoy and ally. Take time also to consume the hearts of fallen enemies to earn health and extra essence. Fight your way to the streets until you meet up with your crew. Take out the next few enemies then destroy the lights leading to the subway.
Once in the subway, destroy the lights first then destroy the gate. Continue destroying the lights and enemies as you make your way to the platform. Go downstairs and check the fire exit behind the stairs to find another relic.
Continue killing enemies ahead. There's a talent shrine halfway so use it as necessary. Head to the next platform and continue heading to your objective. Kill a few more enemies until you finally see Jenny. Walk along the corridor and talk to the two guys then continue forth to return to reality. Meet up with Tony and talk to him to complete the chapter.