The locked state of any door can be reversed so easily it is of almost no use: just shoot it or hit it with a melee weapon _once_

I am aware that this is likely to change and maybe the devs set it this way to test the mechanic, but I want to make sure the issue is raised early enough.

Yes we need a breakdown mechanic, but one hit surely is not the final way to go. One would expect a dependency with the type of door as well: thin wooden door of a room on an upper floor, metal door at fire station, main door at the entrance of a house