firstly, IFC touched on things like camouflage and coverage,
field discipline... etc. basically what to do and observe when
outfield.
secondly, as for sensitive skin, either you go get a memo from your
doctor or after fieldcamp see your skin condition how first then go
report sick to excuse uniform and take some medications.
thirdly, situational test tests on your problem-solving skills and
your reactions when given different tasks to complete within a
timeframe. it's to see how you delegate jobs to others when you are
playing the role of an IC, and also how you do the jobs assigned to
you when you are playing the role of a rifleman.
Some rope skills that you should know are reef knot, clove hitch,
square lashing, sheer lashing and bowline.