I've managed to find and extract the the map files from Sniper Elite 4 (PC) from the .mimg files with QuickBMS and the asura.bms script. It throws out a couple of .tga/.dds files with DX10 header that are only viewable in XnView, but they seem corrupted:
(Click for full size)
Here's a zip file with the original .mimg file and the two .tga files asura.bms produced: https://mega.nz/#!FBpxmZjA!SZZrtJMPESJd ... WPiZZ45f5s
If anyone can help it'd be appreciated greatly.EDIT
: Using the latest versions of both QuickBMS and asura.bms.