Express shot comsumes two rounds of ammo on activation despite sliding

[abunchofasdf]

As stated in title
View attachment Video Project 4.mp4

 

[icegoddess222]

is there a reason it shouldnt proc express shot while sliding?

 

[barlakopofai]

is there a reason it shouldnt proc express shot while sliding?

I think the issue is more that it's using an extra two ammo out of a pool of ∞, and then removing that from the regular ammo pool