U mechanic?
Well, both have pro and cons too.
For mechanics and armourer or other technicians, its the complex
mechanics of the systems they are taking care of that is very
bothersome. I can always remember myself under hot sun, in
uncomfortable coveralls, struggling to repair an engine that comes
in thousand pieces. Lose one bolt or nut may result in non-workable
engine. Let me tell you guys, whoever try to repair the new MAN 5
ton or HMCT, I salute you. Reparing the old Merc and MAN series of
tonners can pekcek already, with the large amount of POL they
consume. The new tonners comes with complex electronic system and
compact parts, making them VERY difficult to repair.
For armourer, I guess its less complex, but they cannot lose any
part of the weapon. I had many armourer friends who told me every
pieces of the weapon must be taken care of thoroughly...or else.
Losing a weapon part is a no no in SAF.
ORD liao 
