Marathon Easter Egg in Halo 4

If you look at the Spartan Laser, diagonal-ish to the the trigger there is a number that reads: 2401. Here is the link: https://halo.xbox.com/halo4/en-US?# (You have to click on “ordinance and armor”)

Could be a reference 2401 Penitent Tangent, the monitor of Delta Halo.

How is it a Marathon Easter Egg?

> Could be a reference 2401 Penitent Tangent, the monitor of Delta Halo.

It very well could be! I was thinking that too!

> How is it a Marathon Easter Egg?

I’m pretty sure you see the number in the game and the achievement in Marathon: Durandal, “Hats off to 819”'s description is “The secret of 2401 lies within.”