There are tons of locked doors all around the city. I've found about two lockpicks so far, one was from a random enemy and I'm not sure where I found the other one. How can I acquire more lockpicks to open up the locked doors?
There is currently no definite way to get lock picks. It is purely luck of the draw through loot. Probably the best way to get them as of now is to farm low-level missions.
I'm in the same boat myself, and dug around a bit to find an answer. Hopefully they patch this in the future for a higher drop rate, or so they are craftable.