That. And also the long reload timer when the AP rounds are loaded in.
Not to mention the Vet. Nor the HT support. Nor the 222 hovering around.
For sure, the AP rounds are powerful vs lights, but they certainly pay for it in reload time and Muni cost.
15muni for huge penetration boost and 100% dmg bonus.
Compared to DSHK 25muni for penetration boost only that gives it away by hovering a huge icon over its head.
I've seen HMG42 and 34 kill with one-two bursts everything below T-70/stuart.
I have yet to see DSHK bring down to 50% 222 in 2 bursts.
I don't think incendiary ammo are op, they are fine, its DSHK that is severely underpowered despite being most expensive and most worthless HMG in game.