And to your question as to which vocation is the best... It all
depends on what you want out of your NS life, as well as for the
next 10 years of your reservist cycle.
If you want pride but with more risks, and siongness, go for CDOs
and Naval Divers... Especially Naval Diver.
Combat Engineers 10 years ago used to be very siong, cos a lot of
manual bridging is involved, now it is mostly automised. So the
"fear" level has gone down a lot.
Infantry is pretty siong too, with all the walking and chiong sua.
The Guards are similar. Armour aint easy too. Not so sure about
Artillery.
But if you want an easy life, be a clerk or something, you can
forget about it. Cos you can request to be posted to CDO and NDU
(provided you are combat fit and passed all the IPPT and SOCs), but
you can never request to be posted to be a clerk or storeman. That
will depend on your luck...