Starting the fight over control of Denny Park district (District Showdown) will become possible only after lowering D.U.P. control indicator to 30%. Head to the place marked on the map with a phone icon (large billboard on the roof) and make a call.
Battle of Denny Park district will not surprise you with anything unusual. There is a relatively small group of enemies to eliminate, however there are also elite troops among the D.U.P. forces, so keep attacking them from a distance and use the most powerful abilities. Also, do not forget that you should avoid sniper fire and frequently change your position, in order not to let the enemies get close.
Rewards for taking control over Denny Park :
- Fast travel option
- Getting rid of all D.U.P. soldiers in the area
- A unique outfit for Delsin - Angel of Death (you can change it in one of the menu windows opened by pressing Options button)