[Imp]

The reason I count front line troops with limited ammo as micro management & not atry is because they tend to opfire. So if ammo is short you have to decide each turn if you want them to & tweak ranges etc.

I have no idea what is a sensible load suggested 60 simply as in meetings ammo should normaly last & might stop the odd extreme range shot to conserve ammo some people take so be more realistic, mind you I like those steel rains a coming.
Defend & delays though vs Ruskie Jap human wave attacks the linch pin of your defence is going to run out as its firing constantly trying to hold back the hordes.
Oh heck what was plan B.