Lovely. I know you asked for criticism but there's not much I can complain about aside from wanting more. I suppose one thing would be while you did a fantastic job illustrating Engineer, Spy's personality isn't as clearly defined. I enjoyed the bits with Soldier and Scout. I find it important even in relationship fics for the story to not forget that these men are part of a team and that their teammates exist. I enjoyed the Spy/Engineer dynamic as well, the two are enemies on the field by nature and it's interesting to see how attraction can emerge and eventual affection. I don't know if you intend to continue this or not, but I would be interested in how their relationship as a couple would grow and develop. Either way, thank you for this story.