I didn't sign any charter. Is it that thing Marc Middleton made/is always praising?
Tents were historically shared with 4 to 8 people, depending on the type. Personal tents are historical for generals and other senior officers. They even often had wagons with furniture and personal supplies as well.
Yes it is. And as Olafson said too, you won't find tents for an army in campaign. It was enough difficult to have the supplies follow that they didn't use wagons to carry a tent for 8 ppl (imagine nearly 400 tents for a single regiment !). Even senior officers and generals didn't have always a tent, they mostly slept in houses. If they were in a tent it was shared with aides etc.
Spoiler
(https://www.fsegames.eu/forum/proxy.php?request=http%3A%2F%2Fi52.tinypic.com%2Fabrqmd.jpg&hash=c54a366fa3402e5a9a431ab7e8ccb30c4a565874)
(https://www.fsegames.eu/forum/proxy.php?request=http%3A%2F%2Fwww.histoire-en-questions.fr%2Fpremier-empire%2Fhabillement%2Fdormir1.jpg&hash=f0abc5982a3ca0cf17a65f842d699fa2e26710c9)
Like these ones Spoiler
(https://www.fsegames.eu/forum/proxy.php?request=http%3A%2F%2Fa406.idata.over-blog.com%2F3%2F25%2F37%2F18%2FBase-de-donnee%2FGA.jpg&hash=f77780420ba7b99d412040b6a38b86d24a6b5a0f)
I had another picture with straw schelters but I can't find it.