Execution Quest Can't Be Completed?-Glitch or Not?

I already have 23 kills. I need to find Eli Holden to complete the list and get the Title(Death Incarnate)..I could have sworn that i could find Eli Holden in Dark Hollow map..either in "Hunter Killer" or "Fox Den" but to my surprised i found Gustav Gattis on both location..I have done it over and over again but its always Gustav Gattis,why? FYI... i never found any other fugitives in different zone in a particular map except Gustav Gattis..Now, is this a glitch or not?