scmJS docs

VER

The file's revision, which decides which sections the game reads. The values are in Revisions.

Name VER␠ (56 45 52 20)
Size 2 bytes.
Read by The game.
Required Yes. The game does not load a map without it.
More than one copy Only the last copy counts.
In scmJS Read, and written again when you change what it holds.

Layout:

Offset Type Holds
0 u16 The revision; see Revisions