Is BMI outdated?

Clockworkmark31 Posts: 1,053
edited October 2015 in Health, fitness & training
Currently trying to get in to some form of shape.

Knowing that BMI seems to be the be all end all for military.

Is it not outdated?

My BMI should be max 25 or 80.9kg.

Dropping to 12.7 stone for me seems somewhat far fetched (would be like a twig, I can't shrink bones).

In the medical for military service do you have to achieve normal BMI? Or do you have different standards?