Hi,
Here are a few ideas for PC2 which hopefully haven't been said before:
1. Artillery casualties vs infantry "density". What I mean by this is that artillery shots should do more damage (not suppression) against infantry, especially when there are more of them in the target hex. The damage is too low and I believe it should be increased (or give us a perk like "Precision strike" which converts artillery suppression into damage), but the amount by which this should happen could depend on the number of target infantry units. For example, an artillery will do more damage (and suppression) against a strength 20 infantry, less against a strength 15 one, even less against a strength 10, etc. The more infantry you have in a hex, the easier it should be to kill more of them.
2. Allow us to permanently change AA guns into AT ones instead of resetting this every time they move. It doesn't really seem realistic (i.e. can't imagine anyone doing that in war time).
3. Buff AA guns a bit. Right now they seem way too expensive (prestige and core slot-wise), and getting additional fighters is probably better. My idea is to reduce core slots by around 25% and prestige by 50%, OR drastically increase the actual kills they inflict on low-flying aircraft (and maybe remove the perk related to this). Most AA guns were quite good against low altitude planes and quite useless against high altitude ones (which were mostly strategic bombers). I know that these have higher ground defense than the other planes in the game, but the AA guns don't really kill the others as well as they should. Also, the german Flak 8.8/41 (and some of the allied guns too) was able to reach the higher altitudes quite easily (there were even systems that allowed for precision shots). I'd go as far as not even allowing suppression from the bad AA guns against high-altitude planes, since their bullets didn't even reach.
4. Anti-tank guns don't really seem to be needed currently (unless you're defending), which is kind of sad. To buff them a bit (and the better tanks, with longer guns), maybe increase their range to 2? Or make use of (i.e. create an actual game mechanic for) the
camouflage and actually allow first-strike shots with ATs when attacking. I do understand that the point of an AT gun is to hide in the bushes and wait for a tank to get near - but this means they shouldn't really be revealed before firing or ambushing someone (so my idea is something like this: you move an AT at least 1 empty tile away from an enemy to activate 'camouflage'; next turn, you attack it with 'first strike' (either by moving near it, or it having moved near you).
5. Angles of attack. If an enemy unit is hit from behind or from the sides, it should take more damage than being hit in the front. This could eventually lead to implementing armor zones for vehicles (e.g. a tank could have 16 ground defense in front, 10 on the back and 12 on the sides). Since the map is hexagonal, there could be 1 front, 1 back and 4 side tiles. Some tanks even had better side/back armor than front one. Infantry could probably do with two different defense values (back = lowest, front and sides = highest).
6. Make units hit each-other at the same time and create "First strike" and "Negate first strike" heroes, units and battle conditions.
7. Weather system seems kind of rigged currently, because towards the end of scenarios it starts giving you rain/clouds, just when you actually need it most to be clear. Coincidence?
8. Create the idea of "support commanders", giving the whole army certain passive buffs, or activating some for a number of turns. For example: choose an artillery specialist commander which could bombard 1-2 target tiles for a few turns when called to do so.
9. Nerf the encirclement mechanic and maybe some of the negative perks that are too harsh
Important EDIT: - one more thing I really hate: WHY do we have to pay 10000 prestige to unlock the alternate path in the campaign??? Seriously, why do you gate players this way? What is there to gain out of it? Because it only makes you NOT play for fun since you know you're forced to gather that prestige....just to unlock something fun. What will be next? in-game microtransactions so we can play even more alternate campaigns?! Come on... You didn't even give us more alternate campaigns (since, as someone else said, you're probably waiting to milk us, in PC1 style, with many overpriced DLCs...). Too bad, really.
Thanks