You can't see the def on these reports. You only see what they lost. I'd say that they were much stronger than your off.

Keep in mind that if you hit a live haven (as opposed to a block),

1. it can be reinforced, i.e., defended by many players, and
   
2. walls and haven improvements come into play.

Thank you for your answer. You are right. I don't understand the reason why ,but we can't see whole defence force. On the other hand we can see all destroyed units. 126 nautilus submarine and 63 pardoned nautilus submarine were losts of the defender island. Is it normal to have thousands of nautilus submarine for a 81th stage player? I'm a stage 85 player who didn't miss any sketches but could only purchase not more than 200 nautilus submarines. The second probability that you pointed about reinforcements ,can be possible. Another strong player could deployed thousands of nautilus submarines with other strong units in that island. But who would take a risk like that. Perhaps a player who has two accounts with the island that I've attacked. But that would be a violation of the one account policy of the game rules wouldn't be? 

I once splatted on 6k Nautili. Players can have tens of thousands. Obviously, not built manually, but bought, but yes, they can have as many.

Plus, like I said above (item 1), they need not be the units of just one person. His BH, friends,... anyone could've reinforced that haven. And any number of people.

I don't understand this:

Timur The Lame wrote:

Another strong player could deployed thousands of nautilus submarines with other strong units in that island. But who would take a risk like that.

What risk? A BH mate calls for reinforcements because they have an incoming attack. Those who are there to see the call send their units and they defend their BH mate.

Unless you charted down to, like, a minute, they'll have enough time to send.

Better late than never.

Ye can see your losses and total unit numbers.  You can see the opponents losses but not the total troops in this battle.  Do they have a full set of haven guards?  5 scallies, 10 redcoats, and 10 gunner's mates?

If yes then I would say you killed about 26% of the defenders based on your 74.2% losses.  At most they had 28% losses else you wold have seen a second Scallywag go down.

The best indicators of your loss factor are the Marauders (74.163%) and Ship o' Line (74.161%) as they are the largest single groupings in the battle on your side.

Other factors to consider is the unit types.  I'm not completely sure on how the special teams influence the battle but they had a lot of subs, gunboats (bh gbs too), and bonnies.  If anything was light it was mercenaries but that was both sides.