This one is a big boom for everyone involved, here's how it went:
I was looking around in low g1, lanxing away when I spotted JimmerJam getting attacked by all of Mantis' speed fleet from the same system. It looks like he was timing back an expedition fleet, but why send so much and why did it have 1h8minutes left if he sent from the same system? Whatever the reason, it was time to call on the alliance for a big hit, and we quickly got ready to launch.
After a few quick calculations it was extremely unlikely that he sent on 20%, so 30% was the final answer, and I had his return time.
Thankfully, our combined flight times were just a few minutes under his return of 1h9min, so as long as he didn't recall we had him 100%, as long as everything goes according to plan.
After a brief exchange of messages with the defender he seemed concerned about a possible time-back, but not enough to recall. I also had the chance to learn the reason behind his initial attack. Apparently, JimmerJam has been spending outrageous amounts of resources in the auction house in order to win, even on small items. Clearly, Mantis wasn't having it and wanted to teach him a lesson, so he lanxed JimmerJam's expos and sent everything from the same system.
Initially, the hit was supposed to be 17K recycler's worth, but I sent 20K, just in case something unexpected happens.
His attack went though, after which I had two minutes to lock his return and open the acs. The team then had two minutes to join in.
This is where a tragic accident happened. The initial attack timing was same second, recs 1 second behind, but then someone joined late, delaying everything by 7 seconds. Had to recall the recs and send again, making them 10 minutes late and giving the defender 7 seconds of play to either escape or defend.
Figured we might as well keep flying and see what happens, it's not like he's going to gather up all his ships and suicide them on our attack right?
Right, he gathered 9k recyclers on his moon, sent his rips to land between his fleet return and our attack, and sent the recs to get what debris he could after the landing.
This is the result, all that's left of mantis' fleet are his 75 rips and the 20-23% from the space dock.
Mantis refused to send me his recyclers's API key to complete the post, so assume that his around 250M less.
Honestly kind of an insane play from him, with 7s i would've tried to escape instead. Turns around 400M profits into a 200M loss, but at least it was interesting 
FR defender
On 17-12-2022 --:--:--, the following fleets met in battle:
Attacker Forgetmenot [Sparta]
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Light Fighter 122.603
Heavy Fighter 14.321
Cruiser 7.901
Battleship 2.683
Battlecruiser 2.058
_________________________________________
Attacker Sneaky [Sparta]
________________________________________________
Heavy Fighter 14.339
Cruiser 9.736
Battleship 2.741
Battlecruiser 794
_________________________________________
Attacker Senator Helio [Sparta]
________________________________________________
Reaper 550
Pathfinder 8.198
Cruiser 5.654
Battleship 3.307
Battlecruiser 3.122
_________________________________________
Defender Mantis [L3GEND]
________________________________________________
Small Cargo 26.840
Large Cargo 10.446
Light Fighter 46.509
Heavy Fighter 7.808
Cruiser 3.807
Battleship 3.469
Colony Ship 29
Espionage Probe 93.236
Bomber 1.586
Destroyer 952
Deathstar 76
Battlecruiser 1.187
Reaper 1.609
Pathfinder 4.330
_________________________________________
After the battle ...
Attacker Forgetmenot [Sparta]
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Light Fighter 55.179 ( -67.424 )
Heavy Fighter 7.947 ( -6.374 )
Cruiser 5.284 ( -2.617 )
Battleship 2.070 ( -613 )
Battlecruiser 1.571 ( -487 )
_________________________________________
Attacker Sneaky [Sparta]
________________________________________________
Heavy Fighter 7.984 ( -6.355 )
Cruiser 6.669 ( -3.067 )
Battleship 2.087 ( -654 )
Battlecruiser 633 ( -161 )
_________________________________________
Attacker Senator Helio [Sparta]
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Reaper 445 ( -105 )
Pathfinder 5.635 ( -2.563 )
Cruiser 3.817 ( -1.837 )
Battleship 2.614 ( -693 )
Battlecruiser 2.434 ( -688 )
_________________________________________
Defender Mantis [L3GEND]
________________________________________________
Small Cargo 0 ( -26.840 )
Large Cargo 0 ( -10.446 )
Light Fighter 0 ( -46.509 )
Heavy Fighter 0 ( -7.808 )
Cruiser 0 ( -3.807 )
Battleship 0 ( -3.469 )
Colony Ship 0 ( -29 )
Espionage Probe 0 ( -93.236 )
Bomber 0 ( -1.586 )
Destroyer 0 ( -952 )
Deathstar 76 ( -0 )
Battlecruiser 0 ( -1.187 )
Reaper 0 ( -1.609 )
Pathfinder 0 ( -4.330 )
_________________________________________
The battle ends in a draw.
The attacker captured:
0 Metal, 0 Crystal and 0 Deuterium
The attacker lost a total of 942.508.000 units.
The defender lost a total of 1.664.072.000 units.
At these space coordinates now float 581.740.878 metal and 378.234.623 crystal.
The chance for a moon to be created from the debris was 20%.
________________________________________________
Debris harvested by the attacker(s):
435.090.815 Metal and 231.613.559 Crystal
Summary of profit/losses:
Summary attackers(s)
Metal: -151.684.185
Crystal: -66.433.441
Deuterium: -57.686.000
The attacker(s) lost a total of 275.803.626 units.
Summary defender(s)
Metal: -878.701.000
Crystal: -654.772.000
Deuterium: -130.599.000
The defender(s) lost a total of 1.664.072.000 units.
hehe fr def
