Fast question: If a Daylami (limited camo profile) survives a flamethrower does he get mimetism? Limited camo is fire-sensitive http://infinitythewiki.com/en/Camouflage_and_Hiding_(CH)#CH:_LEVEL_Y._LIMITED_CAMOUFLAGE + "Any Level of the Special Skill Camouflage and Hiding (CH) the trooper had is reduced to Level 1, CH: Mimetism, even if the trooper passes its ARM Roll." http://infinitythewiki.com/en/Burnt
Limited Camouflage can't be reduced to level 1, because it is not a number-levelled skill. Also, perhaps a more solid argument, is that Limited Camouflage also states that you can't benefit from Mimetism unless you also separately have it.