I think nomad is barkley look this foto:
Nomad:http://bachcomp.pl/images/allegro/images/crysis/wallpaper_crysis_01_1680x1050.jpg
Nomad 2 foto:http://images.wikia.com/crysis/images/3/31/Nomads_Face.jpg
Barkley:http://images3.wikia.nocookie.net/__cb20110403205623/crysis/images/e/ea/Sherman-barclay-crysis-2.jpg

Look the face foto nomad 1 and barkley... is very smile, has the scar on cheek right, and tell he knew strickland and he saw him death... is a very mysterious man...Doesnt discute the orders, smile to nomad

Nope.