It should require an empty paper, like the one suggested in "Paper" item & Writing Notes by Eternauta.
I think bettter make it require some material to make maps, blank paper from books perhaps.
To be honest I think we need wasteland houses or be able to buy bases with only 1 alt.Only noobs stick with tents.
Why brujah??we arent so rich as u r.
Even lonelly players need at least one base, to register all their chars and put the stuff they want to exchange between alts, including the tent maps. I think to risky to put a tent map in a public location and dual/fast relog to make sure all chars read it. (especially with the idling treat) I someone spots you, you just gave up you tent and everything inside.