6.The hero Kaspar is forbidden – he cannot be used for the playthrough! You can hire him. However, it is forbidden to use Kaspar's troops and war machines. It is also forbidden to leave him overnight, i.e., Kaspar must be dismissed, forced to surrender, or bought out on the same day he was hired.
Of course, these conditions will be the same for everyone, but each player has their own tactics for clearing neutral creatures, and having fewer troops than usual at the very beginning may ruin it.
I explained it a bit chaotically, but I think you understand.
I suggest allowing players to take troops (only troops) from Kaspar.
