I guaranteed you would not get 200+ weapon parts from 2 hours of strikes, average strike is around 10mins than make 12 strikes (that's not including time spent in orbit) you won't get 17 weapon parts a strike
English
-
If your in a fire team strikes take 8-10 minutes and the next strike starts almost instantly, and to top that you'll max glimmer in about an hour so you'll be able to buy about 50000 glimmer worth.
-
The Flaw in your post being the word "fireteam" not everyone has 2 people who want to constantly run old strikes with the new dlc and trials out