CUBE Corp's Head Medics are majorly smart in the medical field in CUBE Corp. They can be found in the Recon areas, The Head quarters, The Battle Field and many of times in the Nether Portal Experimental Room or aka NPER. The purple Coloring is from the NPER Contamination from the particles of the portal once they had white suits then it changed. They also found out the Contamination particles they call the H Cube has healing abilities like no other. They now on purpose use the H Cube into these suits.