Hidden units

[Mowgli]

More findings:

- Changing formation (from deployed to travel mode and vice versa) is not safe and will reveal your unit to the opponent.
- If you move adjacent to enemy units that are positioned in clear terrain, they are immediately revealed. (they need to be in cover in order to stay concealed adjacent to you)
- Units in travel mode can be concealed.
- UNITS POSITIONED IN OPEN TERRAIN (all terrain they're not able to hide in?) - even if yet undiscovered by the opponent - IGNORE CUSTOM OPPORTUNITY FIRE SETTINGS?*
- Once discovered by the enemy, a unit ignores all custom opportunity fire settings. But you should be able to re-conceal the unit (making it use the custom opportunity fire settings again) by breaking all your enemy's line of sight to it and positioning it in proper terrain (but be aware that you usually can't see all enemies either, so you don't really know if you are successfully re-concealed...).
- If a unit opportunity-fires from a hex, the firing unit and additionally all units who are in the hex and cannot hide in the terrain of the hex are immediately revealed to the opponent.
- It can happen that only some units in a hex are revealed to the opponent while others remain concealed. As mentioned in the first post, the hidden units can get hit by attacks that target a random unit in the hex (e.g. air strikes, mortar strikes) or all units in the hex (artillery strikes). I have not figured out yet whether the fire effectiveness against the hidden units is reduced to only 25% (as in Squad Battles). This would be quite important to know.


* In Kursk scenario #070511_Hill 225.9 hypothetical, if you move the Soviet tanks back a bit in order to conceal the german tanks in (5,4) and (6,2), then set all german units on "hold fire", then move the Soviet tanks forwards towards the germans again, the german tanks will open fire at long range (ignore custom opp. fire settings). I suppose it's because they're positioned in open terrain? THe same was true for infantry, which - if positioned in open terrain - also opened up ignoring its opp. fire settings.

SIDENOTE ON ARTILLERY & MORTARS:
- Mortars seem to always target a random unit in the target hex (including concealed ones?). Firing costs 1/2 of the movement allowance (2 shots per turn). Fire effectiveness is affected by the hex density multiplier (the higher the stacking value in the hex, the stronger the fire power) and the unit size modifier (the smaller the randomly targeted unit, the weaker the fire power).
- Artillery strikes hit ALL units in the target hex, including concealed ones. Firing costs the full movement allowance (1 shot per turn), but fire effectiveness is doubled to compensate. Fire effectiveness is affected by the hex density multiplier (as above) and the unit size modifier (as above).

-> Looking at this, it seems to me that a stack of three platoons in a hex is much safer under mortar fire than a single company unit? Simply because the mortar strikes only one of the three platoons and the platoons are small units, thus profit a lot from the unit size modifier.