If you ever head the line https://wiki.teamfortress.com/w/images/7/72/Soldier_PickAxeTaunt01.wav?t=20100625232246 it does sound like he is about to kiss him. Though with Soldier calling Medic, sweetheart, pumpkin, and the ever popular cupcake. Why didn't this ship become popular? Seriously peeps!
I have been told by my peeps that it is due to lack of valve showing Medic and Soldier doing stuff together.
So instead of my normal doing romance using 90s anime as an influence. Instead I used bloody bleeding heats with bullet holes because I thought it would work with this couple. You know blood baths and battle and stuff.