Factors regarding posting are never fixed. Unless you expressed
interest to go OCS, have A lvls and pass IPPT then you just have a
HIGH chance of going to OCS only. Other postings and vocations got
no fixed factors.
My coy got alot of people fail IPPT, all those who failed got
posted to Sispec. Some nerdy guy got posted to armour. One guy in
my platoon who reported sick the most and completed only about 60%
of BMT got posted to a relaxed vocation in the navy (learn to sail
boats, drive ship, everyday learn swimming and do the standard bmt
stuffs).
Then one guy in my coy whose mum keep calling up my OC for every
small things (the son's field pack spoil la etc) and never even go
for field camp at all got posted to rifleman. Heck he was selected
for the music and drama coy interview.
Then my coy best recruit who got silver in ippt and the highest
score for SOC and who want to go OCS badly got posted to OCT. The
police's version of OCS.
my combat engineer mates (all corporal) in my platoon has 10 a
level dudes, 2 of which got ippt gold, 3 got silver, 2 pass.
than got 5 3SG with a level come along, 2 silver, 2 pass, 1
fail.
so nope, a level doesn't mean more chance. pass your ippt, or
get gold also no diff. but if you are damn exceptional, you will go
ocs (all platoon /company best will go , right?)