Stephen, you heard wrong about the BHP. The BHP still is the most popular military sidearm in the west, been in service for 73 yrs, and is still being produced.
I have used both the BHP (on opertions and in peacetime) and Glock pistols (during peacetime only). I am armourer qualified on both.
Personally, I do not beleive the Glock is suited for pan-climatic generic military service, but may be suited as a duty gun for police/LEO, as it is widely used accross Canada and the USA by such organisations.
If you understood the Glock overall, plus the safety mech on the trigger, and while wearing gloves, I am sure you will understand. For starters, the Glock does not have a 'postive' engaged safety catch (as does the BHP), and becuase of this, (even by trained personnel) there is a capacity for UDs, many revlove around holstering the weapon.
The Glock also has a plastic lower, and plastic mags. Overall it is not as robust as the BHP, and its service life would be reduced. Example CF BHPs are all pre 1945 manufactured by Inglis of Toronto. As long as the pistols are manitained and keep within tolerance there is no issues. I have seen Glocks 3 yrs old and off for destruction because of condition. Thats in service here in Australia, where they are primarily used by RAAF jet aircrews, AKA the JAP (Jet Aircrew Pistol).
I am sure you weill make up your own mind once you have handled and been trained up on the BHP. Its a legend in its own time.
Regards from paradise,
Wes