I think 343 should change the victory conditions on FLOOD to where to two different conditions: Condition-1-If Spartans survive 2/3 rounds all Spartans should get the victory. Condition-2- If the flood kill all of the Spartans in 2/3 rounds then All of the FLOOD should get the victory.
I hope 343 reads this and takes it seriously, because it is too hard to earn the FLOOD victory commendation because right now only the very top player gets it which is unfair for those who got 2nd and 3rd place.