Results (so far)
Headphones Easter Egg:
According to the gamefiles, the headphones can spawn randomly in one of 5 locations on the map and then cycle randomly between these locations at random intervals between 60 and 600 seconds. Once the headphones on a map have been picked up, they supposedly will not respawn. (Thanks Noizex for the gamefile info, psychoduckuk for testing the respawn)
Known M-COM locations (JambaJeww A.K.A. LilServie, Half-Life):
Known headphones locations (haIfIife A.K.A. Half-Life):
Monte Grappa known headphones and M-COM locations (IDoNt_CaR3 A.K.A. oli balzu):
Monte Grappa M-COM Morse code sound recording (LilServie):
St. Quentin Scar M-COM location #1 (CarsonFidler A.K.A. Carsøn Fidler):
https://twitter.com/CarsonFidler/status/790310776640827392
Empire’s Edge M-COM location #1 and Morse code sound recording (JackFrags):
Possible translations of Empire’s Edge M-COM location #1 (Collision, KwahamoT_ A.K.A. Tom, Luke A.K.A. Blintlin and peterthemaniac A.K.A peter åstrand):
https://twitter.com/Tn_Collision/status/790303898309369856
https://twitter.com/Tn_Collision/status/790304510472257537
https://twitter.com/KwahamoT_/status/790345553104240640
https://twitter.com/peterthemaniac/status/790300659807649792
https://twitter.com/peterthemaniac/status/790304678802227200
Sinai Desert M-COM location #1 and Morse code sound recording (JackFrags):
https://twitter.com/jackfrags/status/790305549258747904
Possible translations of Sinai Desert M-COM location #1 (Collision and henningm85 A.K.A. Schlürpndup):
https://twitter.com/Tn_Collision/status/790321506152767488
https://twitter.com/Tn_Collision/status/790321809270927360
https://twitter.com/henningm85/status/790313554486390784
Argonne Forest M-COM location #1 and Morse code sound recording (JackFrags):
https://twitter.com/jackfrags/status/790318931995156480
Possible translations of Argonne Forest M-COM location #1 (Collision, KwahamoT_ A.K.A. Tom and TheMohingan A.K.A. Mohingan):
https://twitter.com/Tn_Collision/status/790308203011637249
https://twitter.com/KwahamoT_/status/790327276676218880
https://twitter.com/TheMohingan/status/790339629442539520
https://twitter.com/TheMohingan/status/790339604293513217
Amiens headphones location #1 (RHabib A.K.A. RenanHabib):
Amiens M-COM location #1 and Morse code sound recording (TechaGek A.K.A. Techa and JackFrags):
https://twitter.com/TechaGek/status/790281046365507585
https://twitter.com/jackfrags/status/790293067219730432
Possible translations of Amiens M-COM location #1 (Collision and KieranTidmarsh A.K.A. Kieran Tidmarsh and Jerraz0R A.K.A. Jerrienator):
https://twitter.com/Tn_Collision/status/790305322548260864
https://twitter.com/Tn_Collision/status/790305846483877888
https://twitter.com/KieranTidmarsh/status/790301655082369025
https://twitter.com/Jerraz0R/status/790297700168237057
Suez headphones location #1 (MrMustangRider and d3dw0d A.K.A. read d3d redumption):
https://twitter.com/MrMustangRider/status/790270435380330496
https://twitter.com/MrMustangRider/status/790272576782295045
https://twitter.com/d3dw0d/status/790324399027134464
https://twitter.com/d3dw0d/status/790334281344253952
Suez M-COM location #1 and Morse code sound recording (MrMustangRider and JackFrags):
https://twitter.com/MrMustangRider/status/790275415671726080
https://twitter.com/jackfrags/status/790299492553744384
Possible translations of Suez M-COM location #1 (Collision, hardballer25 A.K.A. Dan/Amazing, Steam_Punk96 A.K.A. ESoTSM and KaiQom):
https://twitter.com/Tn_Collision/status/790302296689283072
https://twitter.com/Tn_Collision/status/790303272309518336
https://twitter.com/hardballer25/status/790303647183859712
https://twitter.com/Steam_Punk96/status/790304947560706048
https://twitter.com/KaiQom/status/790302950933590016
Fao Fortress headphones location #1 (PABSTon3DO A.K.A. Vasya_D):
https://twitter.com/PABSTon3DO/status/790247705339629568
Fao Fortress headphones location #2 (Nehefer):
Fao Fortress M-COM location #1 and Morse code sound recording: (TechaGek A.K.A. Techa):
https://twitter.com/TechaGek/status/790271581721198592
https://www.youtube.com/watch?v=AN6LTH-2J-M
Fao Fortress Alternate Morse code sound recording: (TheRadGamerDa
https://www.youtube.com/watch?v=l7yWBQNupNs
Possible translations of Fao Fortress M-COM location #1 (TacticalTurtleY A.K.A.TURTLEonSP00KY):
https://twitter.com/TacticalTurtleY/status/790277215409860608
https://twitter.com/TacticalTurtleY/status/790277688879611904
good at encryption ? here u go
.. .- --.. ..- -. -.. . --.. -. -.- -.. --.. … – – .-- .— .- ..-. ..-.
IAZUNDEZNKDZHMMWJAFF
–. — …- . .-- .-. ..- --.. .-. .-.. .- -. .- -.- .- .-.. .- .- … - ..
GOVEWRUZRLANAKALAA5TI
.-.. — ..- … .-. …- . ..— .- ..-. - — . -.. ..- – …- .- .- -. - ..-. — .-. .-- .. -.. ..- -… . – – - .- –
LOUSRVE2AFTOEDUMVAANTFORWIDUBEMMTAM
-.-- — .-.. ..- .-. .-.. . -.-. .-- - .- --. — --.. … – – .-- .— .- ..-. ..-.
YOLURLECWTAGOZHMMWJAFF
–. — .-.. ..- -. -.. . -.- ..- - ..— .. … – – .-- .–. .-. .-.. .-.
GOLUNDEKUT2IHMMWPRLR
–. — ..-. .- .— – .-. . … .-. .-. ..- -.. . -. --.
GOFAJMRESRRUDENG
- … . .-.. .-. .-- .— - … .- … — … -.. .- . ..- -
THELRWJTSAHOHDAEUT
… – .- -.. .-. .-- .–. . … .-- … — … .- …- . ..- -
SMADRWPESWHOHAVEUT
.. ..-. .. - . -.- .- -..- . - …- ..- .. .. – .- -.- .- .- -.. --.- … - ..
IFITEKAXETVUIIMAKAADQ5TI
.-.. ----. - … . .-. .- …- .-. .. .- .-. -.. .- ..— -. – -.- -
L9TSERAVRIARDA2NMKT
.- .-.. -.. - … . .-. .- …- .-. .. .- .-. -.. .- ..— -. – -.–
ALDTSERAVRIARDA2NMY
.- .-.. -.. - … . .-. .- …- .-. .. .- .-. -.. .-.. — -. – -.–
ALDTSERAVRIARDLONMY
.-.. — …- . -.- — ..- – …- ..- .. .- – .- -.- .- .- -.. -.-- … - ..
LOVEKOUMVUIAMAKAADY5TI
.-.. – – .- .-. .-- — ..- – .-. .- ..- .. . -. --. – ..- .-. -… . -.-. -.- -.-. .
LMMARWOUMRAUIENGMURBECKCE
.-.. – – .- .-. .-- — ..- – .-- .- ..- .. . -. --. .— – ..- .-. -… . -.-. — -.-. .
LMMARWOUMWAUIENGJMURBECOCE
.-.. — …- . -.- — ..- – …- ..- .. .- – .- -.- .- .-- .. --.- … - ..
LOVEKOUMVUIAMAKAWIQ5TI
.- .-.. -.. - … .
ALDTSE
Others:
M-COM Battlefield theme Audio Easter Egg (DANNYonPC):
https://redd.it/587qwm
https://www.youtube.com/watch?v=WT2jNGFHKX0
Jaws Easter Egg (GamersAhoy A.K.A. Gamers Ahoy A.K.A. GamersAhoy_YT):
https://redd.it/58z70o
https://www.youtube.com/watch?v=cu_2qPhF2CI
Pigpen cipher painting Easter Egg (xXPembictoniaXx, DANNYonPC, Hartraft and Gamers Ahoy):
forums.battlefield.com/en-us/discussion/39476
https://www.youtube.com/watch?v=Uw4intnaJGQ
The Lord of The Rings Easter Egg (LosDub A.K.A. James Lee, offlineonline A.K.A. offlineonline00 and DANNYonPC):
https://www.youtube.com/watch?v=xYgdtygLhgA
https://twitter.com/offlineonline00/status/792538961952509952
https://www.youtube.com/watch?v=w-Hq-hEGcsU
German troops speaking English Single Player Easter Egg (saltyfr35h293):
forums.battlefield.com/en-us/discussion/37450
Presumably updated Easter Eggs article (Gameranx: Kevin Thielenhaus):
https://redd.it/582f5f
http://gameranx.com/features/id/78335/article/explore-the-weird-side-of-ww1-with-these-battlefield-1-easter-eggs/
Theories
Headphones Easter Egg:
[True] Find hidden M-COM after finding the headphones, play Morse code on interaction (JackFrags):
https://twitter.com/jackfrags/status/790257834583785472
German translation (KwahamoT_ A.K.A. Tom):
https://twitter.com/KwahamoT_/status/790329912607604737
ADFGVX cipher (Collision):
https://twitter.com/Tn_Collision/status/790330121295134720
Put Morse code’s translated letters into a 5x5 grid to make a word (Carlerklumpen A.K.A. Carl Ludvig):
https://twitter.com/Carlerklumpen/status/790332144950341632
where are the easter eggs
i say this everytime
i miss the days of finding something written in the sand or teddy bears on the map somewhere

