Yes it just a regular door no button necessary.

Basically the map is still so under developed that some things will be obvious in the final version.
However thanks a lot of checking the map out and providing me with some feedback I appreciate it a lot!

Or not.

Oh,the door behind the spawn doesn't need a button?
However,i will try a jailbreak,and then we see if there are any problems left. ^^

Most of your questions would be explained if you'd ever play a jb/ba_jail map. Also those buttons work their positions are just bad for now but will be changed later to make it easier.
You got 1 door behind CT spawn open it with E "USE" and it will open then you have 2 buttons one for open the Ts walk to the "big room" and another one to lower the pit.
I have no clue why I added the Batman-Marks. I want to add a decal there later but did not find anyone that fit in with my map so I added a random one for now.

Guards always opens the doors.

And by the way,what is it about the Batman-Marks?
Is this a prison or Arkham Asylum 2.0?

Okay,but what is the point of doing a prison map in CS:GO?
I mean,you can't do anything if the guards won't open the doors.
And with the button i mean the tree buttons on the CT side.
You can open the jails and the door to the big room,but what about the doors behind the CT-Spawn?
I can't open them,no matter what i do!

Which buttons are not working?
Also it is a jailbreak map. Ba_jail/JB. You are not supposed to be able to buy anything in these maps.
Terrorists are prisoners and CT are guards

Sorry,but what is the point of this map?
I can't buy anything and the only thing i can do is walking into the middle and (By the way,the buttons are not full working) and knife someone.