[@Sep] 

Here are a few ideas for the Security uniforms/armor (except in Navy Blue & Black):

[hider=General Guards]
[img]http://vignette1.wikia.nocookie.net/splintercell/images/6/63/Kestrelconart.jpg/revision/latest?cb=20130908152009[/img]

[img]http://vignette1.wikia.nocookie.net/splintercell/images/7/71/SplinterCell09.jpg/revision/latest?cb=20100420084411[/img]
[/hider]
[hider=Riot Team]
[img]http://conceptartworld.com/wp-content/uploads/2013/08/Splinter_Cell_Blacklist_Concept_Art_BL_MERCS01.jpg[/img]
[/hider]