Sentence:  ... No one told them anything about camo, and it takes them ten minutes to do it right.” ¶ “Well, we have five minutes and everyone has to <WSD>camo-up</WSD>,” the first sergeant explained patiently. 
Meaning of the word marked with <WSD> tags:  To put on clothing, make-up, etc. with a camouflage pattern, to wear camouflage.