I don't think they will post you out to commando (why you so
gung ho anyway??) because you are PES B. You have to be PES A,
unless they have lowered the standards recently.
PTP + BMT means you are mon-intake. And probably you aren't quite
fit or overweight. So you will need to work really hard.
Mono-intake tends to have lower chance of being posted to SISPEC.
Unless you are INCREDIBLY outstanding. My active unit's best
recruits didn't even get posted to SISPEC. So unless you are like
super in SOC, IPPT, Marksmenship and display mind blowing
leadership qualities, don't hold your breath.
Do your best and enjoy the experience. Sometimes, just being an
ordinary soldier is good too. I'm sure a lot of the specialists and
officers on this forum will agree with me that there have been
times we wish we were just one of the soldiers with less
responsibilities, stress and just blindly do then relax.