Medic level will increase when you add soldiers with high medic levels to your MEDICAL UNIT, the better the medical ability the higher your medic level will rise. To rise your TECH LEVEL you will nee to find soldiers that have a S or an A ranking in technition skill, you then insert them into your TECHNICAL UNIT, this will rise your TECH LEVEL, there will be a red line in the tech level this is as high as your tech level can go, to raise this bar and raise your tech level you will need high ranking technical units. When you get a ranking of 99 you will get the STEALTH CAMOFLAUGE.