So I believe we all saw the symbols in the cave during the Halo infinite trailer. My friend and I have been trying to figure out what they say and we can’t figure it out. Does anyone know?
Here’s a picture for anyone that’s need it.
Being discussed in this topic just now if you want to share your thoughts and ideas there 
https://www.halowaypoint.com/en-us/forums/29568daf8cd14083bd1b70a810bf3581/topics/announcement-trailer-hidden-message-morse-code/90b51c12-fa75-4dbc-b00c-4dfadaa95d6a/posts