I have to agree, that after using the key lock system for the last month or two, (I forget when they introduced it?), the new combo locks are such a breath of fresh air!
I love running out of my cabin without having to stop and think, "Now, do I have one key on me? Plus one hidden inside the base, in case I get killed while I’m out? Plus one hidden outside the base, in case I get walled inside and spawn outside to break the wall down and get back in? etc, etc, etc.
I know some people say it breaks realism, and that we couldn’t craft digital combo locks in the wild, etc, but from a gameplay perspective it is a HUGE improvement.
I only hope the battery won’t be too resource intensive to create. For my $0.02, it should have definitely been an old mechanical lock rather than a hi-tech digital one…