@EagleScoutGamer
To answer your question, There is a Heavy cosmetic from 2012 called Apparatchik's Apparel which has 4 styles, and the one style called Outdoorsman gives the shirt a checkered pattern.

Apparatchik's Apparel on the other hand goes underneath Heavy's Vest(Similar to Scout's Fast Learner), while the shirt in this pack goes over his vest.

I like it!

yeah beard is a bit much, kinda cool but we have like 5-10ish other beard cosmetics for various classes, like the shirt though, but don't we have a similar shirt in game or something or am I wrong

no need of new cosmetics

i like the shirt
but i feel like the beard is a bit much