Kiting missions is deffently worth it.
On my Nt back in my young days. Thats like lvl 50ish. I started to kite missions simply because I had a hard time both finding a team and I lacked of time to much RL stuff to do. So missions were a nice thing to do, kite a few missions get your token and reward and loot all corpes. At lvl 105 I had my 1k board and never had to xfer creds to my Nt of the simple reason, I gained loads of monney from loot and rewards. got 50 lvl's and 1k tokens in well 3*9 missions a day some times more. So roughly a week.
Later more specific at lvl 200 i started to kite again, I gained my 1750 tokens in 3 days and about 20 mill creds.
Phew 1750 tokens I felt I was about to have the "tunnel injury" but never the less, I wanted the 2500 board badly. And what does 750 tokens mean when you just 750
so at tl6 I gained my last 1500 tokens in hang on now. 7 days. and another bounch of creds, I dont have an exact number of it this time cuz i started buying stuff, but id say about 35 mill from loot again and rewards.
But last piece of advice pull green missions simply becasue you dont want mobs that require 60 AoE's on them, the green mobs at lvl 200 only took a maximum of 13 nukes, tho hellhounds took alot longer to kill.
I did some token farming on my soldier aswell at her 190's I gained 3 lvl's in a day with missions I'd say thats pretty fair for 4 hours of work, besides all the lovely tokens I gained.
So to sum it all up, kiting missions is really worth it, XP, creds, tokens can it be any better?