@midga I focused on Heal rate and Uber build rate grabbing share bonus asap. Every credit went towards the Medi Gun and Crit Canteen.
On a side note my Festive Medi Gun is not strange and I do not have a Strange Medi Gun. Now that I have the Botkiller (Strange by default) I probably won't use the festive outside of MvM. From what I can tell, stranges do not level in MvM.
While there are definitely Botkillers I would prefer to have, being my first Tour reward, I can't see bringing myself to trade my Botkiller Medi Gun.