Helicopilot, thanks for the info. During that 11 days outing I was lost due to broken compass and missing map, ain't got GPS at that time.
Now always carry at least two compasses.
Water in BOB is surely essential, but the trade-off during selecting the contents is quite confusing. Mostly between water-food-clothing. However some survivalist & campers I know carry a whole much lot such as 10l water bottle and mini gas tank. Some others carry bulky equipment so As far as I've tried I prefer on carrying more water. But more water I put on my BOB, the heavier it becomes. I ended up splitting into 250 mils which is easier to manage. In my experience. one big bottle empties fast, four smaller bottles lasts longer.
Lately I saw many are too relied on pre-fab foods for outing with no consideration to use what's available in nature. And I've seen that the human body can adapt to scarcity of resources, so won't be too worry to push a bit to test the body limit. Indeed resting will recover a lot of power, so adequate rest is important. On other occasion I've also seen a group during outing and one of the member saying, "I can't take this anymore - we got no more water", the nearest post is just 4 clicks away. Ended up his buddies drag him on a emergency stretcher from wood and tents. After arrives at the post, the guy suddenly recover. The mental attitude man. Nowadays the mental breaks faster than the body.
My bug out plan is relying on mobility - on foot - through forest & mountains, therefore need a light enough BOB
Scenario type: scarcity of resources - escaping urban area