well, think of the brighter sight.
storeman (pvt, lcp,cpl) ==> CQ (cpl, 3sg) ==> maybe sent you
for course, come back become Armorer, etc ==> or they let you
become QM. 
==> S4!
Well, if you follow combat coys, up to CQ may require you to
stay-in, unless you are a family-man, i.e. married.
For support, HQ side, if you are PES C, high chance its 8-6pm job.
