I have a few ideas for genjutsu, I haven't seen these ideas yet, just though I'd share em. Please let me know if somebody else
has already posted some of these.

Interface screws, ie. Making a target's health/chakra/stamina appear fuller than it really is,
or to be losing health- such tricks won't be noticed in the heat of battle. Useful for controlling the battlefield.
Fuzziness, flipped screens, inverted controls, scrambled chat- these could be useful. A small army of ninja wielding genjutsu could completely incapacitate a target.
Hallucinating foes or invisibility Hallucinations could be used for escaping, or forcing foes to
retreat when needed- although I think we already have the clone jutsu planned.
Invisibility- not true invisibility, but simply a genjutsu that causes the opponent to not notice you-
very subtle and hard to notice in itself, but also the weakest, easiest to dispel.

To break out of these, there could be several methods:
1. The "release" technique: When used by another player on a target, disrupts weak to medium strength genjutsu.
2. Disrupt your own chakra flow, which requires using up and charging chakra at intervals. May not succeed at stronger genjutsu.
3. Just kill whoever's casting the genjutsu
Genjutsu strength can vary, depending on how skilled the shinobi wielding it is, to the original strength
of the jutsu itself, to wether multiple shinobi are working together in synchronization- easily a nightmare.
The way to getting out of a strong genjutsu, other than killing the caster, would be to combine methods 1 and 2.

The perfect prison: This theory requires many shinobi working together to completely subdue a captive.Together, they apply fuzziness, flipped screens, deafness and scrambled chat to render them deaf, dumb and blind,while simultaneously using inverted controls and paralysis to keep them immobile.Could be used to contain prisoners of war.

However, I know that we're aiming for realism, and some of these go directly against that, so they probably won't be acceptable.
Please let me know what you think of these ideas and if this post infringes on the rules.

Changing interfaces (chakra/stamina and health) appeared as a good idea. I thought that clone jutsu won't be added and ideas to counter genjutsu are too radical in my opinion of course

Or if the person A (the being controlled by genjutsu) is also skilled at genjutsu and could use release himself ?