For sliding, I think that crouching while running and gunning should trigger a slide, while crouching while standing and shooting should crouch like normal.
Apart from the accuracy drop, I feel discouraged from sliding in combat because I have to stop shooting to do it.
As for anointments, there are a few that need a buff.
“While airbourne” and “while sliding” skills need a buff, they can’t deal as much damage as character specific anointments yet require more work.
The elemental chance/damage buff was good, but not sure it makes a difference in m4. That’s more a problem with effect damage in general, though.
Accuracy buffs in general aren’t worth it, nor are ammo regen/reloading anointments (I’m looking at you, digi-clone). Especially since these ones don’t do anything on certain guns.
There may be more I’ve missed, but this is just spitballing for now. Maybe others have noticed more.