There is already topic for this game:
https://www.gildor.org/smf/index.php/topic,675.0.htmlI guess there are two issues here.
Explicit base UE3 override doesn't work for GUI mode, it's still trying to force Enslaved format for this game. I've excluded it from auto-detection in specific build from
this topic, it's possible to open Blacklight Tango Down as-is there without any override options (just don't forget to set required platform settings for proper textures).
The second thing with Tag error is related to corrupted TEXTURES.TFC package, due to incorrect pkg decryption/extraction or something. If properly extracted, PS3 version works fine, while PC version works fine out of the box.