My guild's DK recently quit, and as such we lost our Melee/Ranged Haste buff. We do not have a Shaman either and I am the only hunter since we only do 10 man raids. Should I switch to Survival to give the raid this buff?
I feel like MM is akward now without that buff as I am so used to having it.
Yes. The general rule for 10s is if you have at least 2 melee and no Haste effect, then you play Survival for greater raid contribution. In 10s, MM without the 10% Haste is roughly equal to Surv anyways.
Note, still going to want to keep an MM spec handy for Beth'tilac heroic unless you have an awesome Moonkin.
Such is the life of 10 man raiding. Though, playing something other than Marksmanship all the time is quite refreshing. Also knowing that you're helping your raid is pretty rewarding.