Using the warhound all the time won't get you over 80 and accuracy doesn't affect the score either. It's all about headshots, silent kills and takedowns. Of course on this mission your only choice is headshots so just go for those, think I ended up with 45+ to get the 96 score.
Massive Thanks to Rajeanero for the Shelby's!
10,000 Achievements - 13 July 2014