The Timmy Helmet

Games Halo 5: Guardians
1

What is is and how do I get it?

2

A helmet modeled after Timmy the Whale obtained by playing 50 hours in Custom Games.

3

Cool! Thanks that really helped. Now I just need to play custom games a really long time.

4

Some more details here:
https://www.halowaypoint.com/en-us/forums/6e35355aecdf4fd0acdaee3cc4156fd4/topics/timmy-helmets/2f981178-ac2f-4a41-b72d-f266e9a1256a/posts