well then,i can't agree with that from my personal experience.I
bulk up quite a bit during my full army term,gained about 8 kg from
bmt to ORD (that is from just eating normally at cookhouse,did not
take any supplements.Now the food is way way better,so you should
have it better than me.
It is likely only during BMT that more emphasis is on cardio.During
the rest of my army stint,i remembered that runs of long distance
basis (over 7 km are like only at best 2 times per month,mostly
just once per month for events like CO run.
And anyway most of the runs are at most middle distance
only,consisting of mostly 2.4 km - 5 km,such runs still does not
eat much into the muscle cos around this distance,body glycogen
level is still enough to be used as body fuel,thus protein usage is
like at most 5%.Also after your bmt,SOC will only be conducted once
per year,maybe 1 month+.So apart from these,there are not much
heavy intensity cardio.
As for strenght training,that may have to depend on your future
vocation too,i was a GPGM gunner,this gun weight 14 to 16 kg,so i
had pretty much constant weight training even during outfield
exercises.But if you think yours will not be enough,you can find
your free time to add them in since you will have much more free
time after bmt,eg go do dips and pull up yourself.The only thing
maybe is that if you get into a vocation that does not require you
to carry to many heavy equipments around,your leg training which is
an important part may not be that good since i do not know of any
good body weight compound exercise you can do easily incamp,maybe
when you find you have more time for adequate rest,you can then
pick up training in the gym doing squats and deadlift mainly on
Sat/Sun since upper body compound exercises can be more easily
found during your normal army training.