NDTV has published a few images from Maxer of areas between finger five and six. The images show Chinese camp. I can not call it deployment.
Looking closely at pictures the camps are either on the edges of the lake on tucked into Nullahs / valleys where asuitable place for pitching tents have been found and the ares is motorable.
These are in no way tactical deployments. Those are at best administration areas and any India Army General joking would call it "Muglai"... (a Mogul Camp). That is reflective of Chinese confidence that the camps would not come under artillery barrages or air strikes...
Arcetic or normal types of tents are OK for the prevailling season but dweeling in them under very heavy snow upto twelve feet in winters may not be feasible for 50000 troops.. My guess - this campaign with this scale is not going to go into winters.. Chinese would launch an offensive before that or they would disengange hapily after obtaining some concessions from India.
Overall strength seems to be more than a battalion...