In the ending at mikoshi, V gets rid of Johnny and lives with only one mind. In The Sun ending we could see V preparing to storm the crystal palace.
As we know V is a high functioning cyber-psycho due to having Johnny in his mind. But in the ending I mentioned V doesn't have Johnny anymore, so will he still be able to function just like how he did during the arasaka raid, or is he just a normal chromed up/cyber-psycho now?