Deadshot mission not showing up

[ISDProcrastinator]

I've beaten the game, but the Deadshot mission is just not happening, and neither is the escaped Blackgate prisoners one. I've done all the investigation missions that have shown up, I've completed all the most wanted (besides Riddler) except for Deadshot and Blackgate prisoners, that remain blacked out on in the pause screen. I know I'm supposed to do some crashed helicopter investigation before I can do Deadshot, but I'm just not getting the call from Alfred or Gordon or whoever. Anyone have any advice? :(

[JonoAMano]

Try entering and exiting Sionis Steel Mill, then glide toward Pioneers Bridge like you're going to cross it. That usually triggers Alfred's incoming comms and the mission. If that doesn't work, glide to the westernmost upper balcony of the Gotham Apartments, the tallest structure nearest the Bowery coastline and look for a flare on the west side of the wraparound balcony. You should hear the thrumming of helicopter blades as you near the flare. Approaching the flare should start the Deadshot mission.

[apartheidstinx]

Thanks, JonoAMano. The latter method worked for me :D I was having the same issue as ISDProcrastinator.