Based on all the pictures in the live sightings, here is what I can conclude
At the airport: 5 teams
F/F red backpacks
M/F yellow backpacks
M/F M: black backpack and F with purple backpack [had similar jackets so I assume they are a team]
M/M black backpacks
M/F F [assuming] had the red backpack, M had the black backpack
That is only 5 teams
At the empress: At least 8 teams on the lawn; one missing
We can assume everyone on the lawn did the skydiving roadblock
We also had 4 more teams
M/M with green and black backpacks
There is also 2 females, one with a blue backpack? and one wearing purple.
There is also one extra male.
Therefore there are 9 teams.
I am assuming the all female team with red, m/f team with yellow and m/f with the black and purple backpacks checked in because none are seen with the group of 6.
Also there was no purple backpack?
There is my analysis. We need more pics