[header] How to build a foxhole [title] Select an appropriate site. [title] Dig a rectangular hole 6.5' by 3'. [step] The hole should be deep such that if you stand in the hole, the walls come up to your armpits. 
[title] Dig sumps four or five inches wide stretching the entire width of the hole on the left and right sides. [step] Make these at least two feet deep.