Yes sounds good.
Churchill still have good pen to damage tanks from the side(rear) for 160 hp. I think that is heavy for AI tank.
I rather keep the 18 popcap and reduces main gun to 120.
Extra 2 popcap you can still put out 2 churchills.
Ukf already have FF and Pak and Piats/Snares.
It is pretty beefy indeed the Churchill. Soaks too much damage and sometimes able to deflect shots from both mediums and AT support gun pretty effectively too.
I am kind of fine with but the fact that I am not fine with is the addition to its strength in the AI departement.
It counters a bit too well the Churchill against the AT guns and just infantry in general.
What Churchill changes I would implement, that it would not have such a stronger effect than it necessarily should be since you can acquire more than 1 Churchill, is to make 2 changes only:
1.- Reduce the armour a bit more since it already has great HP (more than KT). To make it more vulnerable to take damage from both AT guns and mediums better.
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2.- Reduce the speed. Decreases the deadly effect on dealing with infantry easily as well as AT guns. It also effectively makes the AT gun have more chances of countering the Churchill better. Since Churchill can pretty much counter anything in its path except heavier tanks.
Bonus 3.- Oh, wait one other thing which make this interesting. You know the Kubel change made with the HP and all. It should be implemented on Churchill since it is supposed to soak damage. Less HP but has damage resistance, in this way able to make repairs faster.
Currently it is a bit too mobile which contributes to its deadly effect on the field. It should be way slower as designed especially when it is designed to soak damage.
At least the AT have a better chance of countering such a beefy strong hp unit.
It will still have an impact on the field but it wont charge in as recklessly as it does now.