UNIT - Creature Balance + Visual Changes

Could you change the trapper to give him a bow and arrows instead of a trap, and make the shooting animation?

Unfortunately, this idea will not be implemented for the following reasons:
1) Goblins were not originally intended by the developers to be archers.
2) The faction already has one full-fledged archer (centaurs) and a second situational one (cyclops). Adding a third archer would be an obvious advantage, and the faction is already quite strong.
3) The ability to shoot in the upgraded version automatically eliminates the need for the alternative upgrade, which in turn contradicts the very concept of the modification, because there should be no useless creatures.
4) The goblin model is not suitable for "re-arming" because it is very short and has an overly "hunchbacked" shape (physically, creatures with such a build cannot make accurate shots. IMHO, of course.), plus there are no necessary animations.

Damage 6-10!? That's like level 4, maybe reduce the increase?
Regarding the minotaur: maybe I'm wrong, and I don't appreciate the +3 to morale, but I prefer it when a creature deals twice as much damage, rather than when the bonus works a little subtly.

It's only twice as much with a direct attack (not a counterattack), and even then, if they don't receive an intermediate counterattack that reduces the power of their second attack. In short, double strike is not even close to double damage, it's closer to one and a half times.
You can argue that they shouldn't be attacked, and all counterattacks will be nullified, but the fact is that there is no reason to take minotaurs into a breakthrough, it's a waste of money, especially after reducing their increase, as in this mod. It's just meat that accumulates in the city to be bought out in the final stages of the game. Meat that is significantly weaker than furies, but whose role is not to deal damage, but simply to endure, thanks to its relatively high health. And in this regard, the alternative upgrade is better.

I also wrote about the 6-10 damage for the crossbowmen, but it seems it was ignored. :)

Minotaurs are very specific creatures, and the choice depends on personal preferences and play style. For example, I agree with Akula97, I also prefer the upgrade with double attack. Although the creature is quite slow, but with good damage and decent survivability, it is able not only to absorb counterattacks but also to deal significant damage. In your case, Nargott, the creature is considered only as "tank meat," which in turn gives its own tactical advantages, but reduces the army's offensive power.

I perceive this creature not only as a tank but also as a damage dealer. I can't say that you are wrong, Nargott, your strategy has its place, but I can't say that the entire tier 3 of the Dungeon is useless and only good for meat. It was significantly improved in the latest version.

For those who need a tank, there is an alternative upgrade (increased survivability + the ability to stun), and for those who need a damage dealer, there is an upgrade with double attack.

In addition, I will reveal a small secret: in the next version, the cost of building tier 3 creature structures will be slightly reduced for some factions (including the Dungeon), in order to increase the importance of tier 3 for those factions where they are not very relevant (in terms of economy).