INSTALLATION:

Extract Blacklist_v1.08b.umd file from this archive into 'Tom Clancy's Splinter Cell Blacklist\src\SYSTEM\UMDs\'
Make a copy of the original Blacklist.umd
Rename Blacklist_v1.08b.umd file to Blacklist.umd


CHANGES:

Sam and Griggs now have balaclavas where it has sense (so it doesn't break immersion)
Sonar impulses now work on Perfectionist difficulty
Hand2Hand denials are tweaked to be more forgivable on Realistic/Perfectionist difficulties. They are still not as easy to pull of as on Normal difficulty
Enemy helmets now have realistic "health" and can be shot off with 1 bullet
3 types of enemies wear helmets now: Technician, Heavy, Shielded Heavy.
Drone operators won't mess up your night vision goggles
Active sprint is disabled, Sam now moves like in Conviction
Stun gun (tazer) has 18 shots now instead of 9, so it isn't so useless in comparison to crossbow


Game with these tweaks isn't compatible with public coop/SvM sessions.
If you want to play the game online with these tweaks, then every coop/SvM player you want to play with needs to have the same version of Blacklist.umd