So i think it would be very interesting to have notes added to the game. Simply 1 slot items that you can write down 150 characters or something onto and then place them on dead bodies, vehicles or yourself. So let's say you want a note on yourself as a note to anyone who might of killed you. Or you like to leave a calling card to let people know who killed someone when they find the body. I believe it would be more personal than the current map tags they have now. So, 1 slot item, a marker to indicate if the note contains any text similar to the fuel tank empty/full thing. Or hell, you could even add something like dog tags as well. Have the tags as a ammo type thing so when you collect 2 you'll have tags and an indicator of 2 amount on you. Just something i think would be pretty cool to see and probably not incredible hard to implement into the mod/game.