Should I quit my Engineering Apprenticeship to join the Army to do engineering?Watch
What should I do?!
You need to be sure that the Army is a valid alternative, which will probably mean making an application and pursuing it until you have a start date. Only at that point do you really have a decision to make.
An armoured engineer is essentially someone who drives a cross between a tank and a snowplough.
Some army trades are much less sophisticated than others, and some don't have great prospects after the Army outside of the defence industry.