LBE rules and other rules

[Tnchi2a]

Ok long time no see lol
Just starting a T2k13 game and not quite sure how Load Bering Equipment works.

while the packs say they hold everything a solider needs for x days they do not give a weight allowance or anything except a general may have this write-up

Do the pack carry their weight in gear or provide a % reduction in weight up to a set amount or what ?

Also on the sheet for firearms there is a place called Attack, what goes there.
Also I understand Damage, and Penetration change per range due to the Stage III rule. but I was under the impression that speed stayed the same at all ranged. So why is there a spot for it at every range.

Lastly is it just me or are the starvation rules weird. they penalize you for being Fit (Athletic Build) but don't give any advantage to caring extra weight (Large Build). It also seems that the reduction are on the excessive side.
All of my PC are soldiers and cant go more then 3 days (some just because thats the lowest it goes) without the starving rules kicking in. seems strange the starvation chart is so extreme. all PC start at the earliest in their late teens at a point in life where they are done growing for the most part. In my understanding a person's metabolism stay relatively content from about 16/17 till their early to late 40's.
so it would be more like
under 16 XX Days
17-40 XX Days
etc.

may have more questions as I go but TY in advance for any help.