I often use a tarp on my moose hunts.
The thickness of the material you choose will often determine the size of the tarp you can transport with you.
I use tarps for anything from simply a cover, to a lean to, to a pup tent, to a tipi, to a wall tent, etc.
When I leave with only a pack on my back to roam or only to camp for a few days, I use a relatively small thin one. If I have access by canoe or other and it is for a week or more, I may set up a more elaborate tarp camp. Tarps make you more flexible.
If your hunt takes place in the north country in October (when most moose hunts take place here) flies are not an issue. Rain and frost are.
If you hunt the early season in September, they will come out on warm days. Then you still have options: Thermacell, headnet, natural wood smoke (which is a neutral to most moose), and the good old wind.
I could have said more but don't want to take more space than I should. We never go anywhere, anyhow, without a tarp within reach.