yeah.
I mean, scientists are the geeks, that create
****.
Medics are the ones who heals.
Engineers are the ones who repair stuff
and Pilots are the ones who pilot vechicles.
Speaking of jamming weapons.
Every soldier knows the ins and outs of his weapon, he's tought to maintain it, so if his gun jams, he can un-jam it himself.
That's how modern soldiern are trained these days.