Here are some ideas of mine that could improve the depth of the game:

1. Layers:
The introduction of multi-layered maps would surely improve the gameplay!
You could find new ways to the treasures to steal.
For this you could use the local canalization, air shafts, the roof or perhaps even seperate floors that are guarded and are filled with loot, etc...


2. Skills and specialization
The guys need to skill certain things this could be:

- pick pocketing
for getting stuff more quietly.

- lock picking
for getting beyond grey and later even orange and red doors.

- electric
not everybody should be able to play with electric circuits,
you should have a specialized guy for that.

- silence
breaking stuff like windows crates, etc makes noise.
Surely there is the one guy that can do this quietly.

- cutting
getting through fences can be pretty usefull for the plan
#The Impound


3. A shopsystem
with this system you could order new weapons or sell stuff or even hostages.
you obviously need to get the hostages into the hideout with the van.
I also dont like it that i get new and free ammo and weapons after each mission.


4. A preperation system for bigger missions
small maps like the kiosk or the bar are pretty obvious to solve. There are bigger maps though which the team needs to get informtion for.They could find things out via submissions like kidnapping a guy that knows stuff about the map like where the cameras, guard and valuables are.
The team could find out almost anything about the map by finding out or just starting and knowing nothing - perhaps not even the rough blueprints.

4. an upgrabable hideout
The hideout should be able to upgrade certain rooms with their own benefits:

- an armory
bought weapons, ammo and tools are displayed and equipable at shelfs in this room
this would look better than lying around the hideout by far.

- a garage
bigger maps benefit from bigger teams and bigger teams need more vehicles
that can be bought and stay on a few slots within the garage

- hostage cells
If you can take certain people for hostage you should be able to "store" them too.
These folks can be sold for ransom or just set free after their information is no longer a threat for the plans of the team.

- a hospital ward
your team can get some bullets or blunt damages pretty easily if you arent careful enough.
these wounds should not be healed after the mission directy, but be treated in this room.

- the meeting room
this room is the heart of your operation! more imrpoved meetingrooms bring the possibility to get more information about the heists.
If you have no meetingroom you need to find out all information about the maps on your own
But with a meetingroom you can get them with submissions and other stuff (explained earlier)
The information will be stored in the meetingroom therefor it need to be improved enough.


5. more possibilities to recruit your team
just buying them is pretty lame. There should be more ways of getting them like meeting them randomly at the heists or in submissions like breaking into a prsion just for getting them freed and eventually recruited.


more ideas will follow!
what do you think?