Well it has not yet been announced but these are a few things I wish to see in Hardcore mode.
No mini-map.
No 3D spotting, they did not have such ridiculous technology back in the day.
Allow snipers to spot enemies but only show their position on the large map.
No instant respawns. If you die you pay the price of being out of battle for at least 20 seconds.
These are my ideas, what do you guys want to see in hardcore mode?
Yes on the first few things you want but if you think people will wait for 20 seconds every time they die then this game is as good as dead nobody wants to stare at some stupid screen telling you got killed for so long
Battlefield 2 had a 30 second wait time. That game lasted 5 solid years till EA decided to stop supporting the servers. There are currently many private servers.
If you died you should be set back in some way. This gets people to make more intelligent decisions about how they play. I do not support this brain dead run and gun that Call of Duty caters for as it usually ends up as a mass murder vest where the ones with the best twitch skills come out on top.
If you want brain dead mass murder please play call of duty infinite warfare.