Experience 3 (Source)
I did a fair amount of testing this one day using myself different level pets and having other people join the group. It appears to me that the calculation is:
Total Group CL / 2
To test this i used several totalings of pets using CL25 as the base for a master (I am a master Swordsman carrying a PH) I am not totally sure at what point you hit CL25 but with myself MSword and my alt 3444 BH we get missions that are CL25 (Test done on Naboo with min CL mision at CL10 and Endor with a min of CL40)
Once i grouped with a pet i would add my CL25 to that number. If i chose a CL25 pet i had, my mission would be CL25. If i choose my CL44 spider the mission was 39 and so on. I did this with every combination using 1 2 and 3 pets. All came to the same number. The formula listed above.
To add spice and test, i also threw in a droid (CL18) and as expected, the moment i added them to group my missions jumped by CL9.
Hope this helps.
Votan MSword - MCH
I am TKM and when i am ungrouped on a normal planet (tat, naboo) the max DL i get for missions is 25.
I have a question about this - i am right now 1/4/1/4 CH so i can have up to lvl 40 pets out. What i've been doing lately is pulling out a lvl 25 and a lvl 10 pet, then a lvl 18 droid. Should i keep using something like this (the low lvl pet to bump closer to my max level) or should i just try to pull one pet out that is closest to my max pet level and leave it at that?
Actually i just pnched some math out - are we sure its always divided by 2? or is it an actual average? Obviously if its only divided by 2 we will get higher missions but i just wanted to check. I was trying out a few different things working with a max level of 40 and the CL's of some of my own pets. Me (25), GSP (25) Fambaa (34) Lesser plains bol (10) Peko Peko (14) harvester droid (18)
so i started with Me+GSP+Bol+droid, 25+25+10+18=78. Divide that by 2 and you get 39, which i have noticed as being the highest level i get when grouped like this (on tatooine).
Then i tried Me+Fambaa+Droid, 25+34+18=77, divide by 2 and get 38.5, which i would assume would be bumped up to 39. Ok, makes sense, i guess it is always divided by 2.
With me+GSP+peko+droid, 25+25+14+18=82 divided by 2 thats 41, slightly higher obviously because the max CL of pets called is 39 in this one rather than 35 and 34 in the other combos. Ok i think i get it now
