With the addition of new render templates, used for the weapon skins, I noticed that they included value slots for;
Sticker Scaling
Sticker Position Offset
Sticker Rotation

This allows OVK to make patterns and textures fit properly for each weapon, without having to make multiple ones for each weapon (because of their UV mapping and different sized textures). Masks don't have this option, which drastically limits the placement or size of the pattern textures, which makes them follow a generalized design.

Why is that important ?
In theory, you could code the weapon skin patterns and stickers, to accept user input, to determine their scaling, offset, and rotation. Allowing players to position them wherever they want, rather than where overkill wants them, while the player is in-game. While that may be interesting, I don't care about the weapons, I care about the masks, but as of now, masks have no slots for players to use to adjust the values mentioned above, though changing the mask render template to the weapon one, crashes the game. I'd like the Mask mechanic, to support the weapon skin render template and mechanic, in addition to adding a slider for players, to alter the values mentioned above.

In short, weapon patterns allow position values to be changed, and could be coded to use player input, masks can't, but I want them to.