As it seems that we can discuss bugs, I would like to make this combat bug known to everyone as it’s very easy to be affected by.
Basically, there’s a bug in the melee combat system when there’s a combat in a city and there are 2 or more groups defending. The defenders don’t do anything to create the bug nor can they avoid it.
To show you in numbers, I did various tests of 50+50 defending against a stack of 100 units attacking, the results were:
Combat: 50 (98%) + 50 (94%) vs 100 (93%)
Result: 26 (76%) + 25 (78%) vs 0
Losses: 51 / 100
Combat: 50 (95%) + 50 (92%) vs 100 (87%)
Result: 25 (78%) + 24 (67%) vs 0
Losses: 51 / 100
Combat: 50 (98%) + 50 (91%) vs 100 (89%)
Result: 28 (83%) + 31 (74%) vs 0
Losses: 59 / 100
The morale is a bit lower in the attackers side, but no way does it explain the 2/1 difference in a combat that should actually be a bit more favourable to the larger stack.
What seems to happen is that the defenders both independently attack the attacker with all their attack damage (as it should be), but the attacker only attacks once (here is the bug). The attacker should combat with each stack independently, so it should attack twice. Also, the defending stacks will appear as if they are not in combat when they are (no combat symbol and doesn't say they are in combat).
I did many more tests with this bug, and if there are more than 2 groups in the city, the results are even worse.
- 10 stacks of 100 defending vs 1000 attackers, the results were that defenders lost just over 100 troops while the attackers lost everything.. So losses at 10/1.
- Let's say the defender has 200 troops and is being attacked by 1000 troops, defender can divide in to stacks and defeat the attacker in a 5/1 inferiority...
The more stacks there are, the higher the difference and the defender can actually create stacks with it's own troops, he doesn't even need an ally to defend the city. So yes, this is a gamebreaking bug.
This bug has existed for many years, at least 5... I reported this a couple of years ago too, through the Bug Brigade, with plenty of tests, details, screenshots, etc.
Some veterans might remember how some alliances were capable of winning combats with a 5/1 loss ratio during the alliance league, the ISAC tournament, etc., these bugs in the combat system have completely destroyed the alliances. I myself organised a alliance tournament last year in the Spanish server with 16 alliances and it had to be ended due to disputes over this bug. But of course, this doesn't just affect alliance games, it affects every single game..
There are more combat bugs similar to this one, but this is it for now.