Here I got an idea of how to implement the new arty system, proposed by several people, but most recently by Djin in a very long and elaborate post, which has a multitude of other nice suggestions.

Anyhow, the idea was to make the arty gunners capable of self-spotting, which would be less effective that arty observer-assisted spotting, but would still work in the abscence of any spotters and allow arty gunners to man their guns and be usefull throughout the whole round.

This system was proposed to enable the gunner to produce a mark on the map, where the gun was aiming now, effectively making it possible to blind-fire to nearly any point on the map, regardless of whether there is anybody or not.

So here is a solution:

1) Arty gunner gets a fourth type of projectile, the spotting projectile (unlimited, recharging, recharge rate - slow)

2) When the projectile is fired somewhere blindly, it impacts and produces a "targeted spot"

3) This spot is different from the usual one in the way that when you go to target mode in the arty, you only see the gray screen (exactly the same as you see when you try to zoom BF2 vanilly-style into the map while performing commander's duties in Caps-Lock mode). I think this was done by placing a gray texture in the top view of the commander, preventing him from "satellite-spotting" enemy movement.

4) This is juct a texture, not a model, so should be fully penetrable to everything

5) Currently, when you are in target mode, you can spot something in the middle of the screen, exactly as everybody else.

6) You spot something (get a question mark on the map), which gets reported over a big distance, like it happens with units reported by any vehicle drivers/scouts.

7) In the end, you get a question mark on the map right in the place where the gun was pointing. Go ahead and fire, or you can do some blind adjustments and then send another "question mark" when the spotting projectile is recharged.

This system is very simple and is fully within the current capabilities of the FH2 build (great thanks to whoever coded the current arty system). Here I would like people to discuss whether this is worth implementing and then it would go to the devs' consideration if it was deemed worthy.

NOTES:
a) The "reporting radius" should be large, but limited to prevent arty gunners to self-spot enemy uncaps.

b) The spotting projectile should be a different projectile so that it adds the "gray texture" to the top view.

c) The recharge rate of the spotting projectile should be ~20 s to prevent exploits.

d) The "question mark" graphics can be changed to "sniper spotted" (which resembles a "target") for aesthetics purposes.