Poor communication tech (ingame comms/manually switching between discord channels)

Op got leaked and enemies are prepped

Any kind of X/XXX marker related to the op

Person blocking the doorway on the longhook

Needlessly complicated multi-step plan

Op scuffed from the start

"This op is going to be legendary"

Shore bombardment kills friendly infantry

"Everyone jump off the ship so we can cross"

Construction vehicle delayed/destroyed prematurely

30+ minute delay before op starts

Forgot something essential like buckets or bmats

Either side brought a flamethrower

Non-commanders taking commanding into their own hands

Barges and GB's blocking the longhook from building landingcraft

Waiting on someone waiting on someone else

Resupply mission at nearby dock/seaport thats undersupplied

Successfully claimed land does not get built back up

Poor onboard dicipline (door spamming, random shooting, blasting music, etc)

Tank crew gets lost

Dropping off infantry at impractical or heavily fortified locations due to lack of beforehand scouting

Pre-op bombardment/sabotage that puts enemies on high alert

Longhook leaves without anyone knowing

Battleship/DD minding their own business instead of defending the longhook

Longhook gets swarmed while trying to redeploy