They're beginning their daily slaughter right on time.
5 seconds sound clip from the The Good, the Bad and the Ugly (1966) movie soundboard.
You can hear this line at 02:18:22 in the Blu-ray version of the movie.
Quote context
[...]
- I've been dreaming about it. I've even worked out a plan. I sure have.
- The best time is after the attack when there's a truce to get the wounded.
- If I could do it, I could save many thousands of men.
- But what I lack is the guts.
- They're beginning their daily slaughter right on time.
- Captain, all companies are awaiting your orders.
- Let's go. All right, friends, come along and enjoy the spectacle.
(Cannonballs whistling and exploding)
[...]