It has recently come to my attention, that in TF2 there are rewards for unlocking a certain number of map specific achievements. Would anyone like to help me unlock some achievements? I will gladly help you get the achievements as well.

The achievements:
wiki.teamfortress.com/wiki/Foundry_achievements
wiki.teamfortress.com/wiki/Astro-chievements

The rewards:
wiki.teamfortress.com/wiki/Full_Head_of_Steam
wiki.teamfortress.com/wiki/Gentle_Munitionne_of_Leisure