HOLY CRAP...this is definitely the shortest Dr. Stone chapter in terms of time that passes in the plot/world, but this definitely is a huge transition point in the plot considering it is maybe a minute or two at most.
Most surprising of all is how easily Tsukasa took out the female MMA champ. I guess it was wishful thinking for the main group to not provide backup so the sniper and Stan moving in while the bulk of the group maintained control of the hostages is the correct tactic (the strongest support moved into place). But this does change things that the special ops members are just upgraded "man power". Only the elite of the elite (Stan for their group) will be the main force for the remainder of the series just like how there is a huge gap between Tsukasa, Hyouga, and to a certain extent Kohaku relative to the rest of the combat team.
I guess Kohaku hasn't had much time to shine and she had to take a back seat to Tsukasa and Hyouga once they were back as allies, so it makes sense for her to be the one to destroy the com device. I'm curious as to why we aren't shown where she was shot (we see a little blood on her in the one panel she is shown in the ending pages). Both the sniper and Stan didn't hesitate to shoot Tsukasa and Hyouga in their hearts.
Tsukasa can be trusted on his analysis/superhuman hearing/vision. If he says Hyouga is already dead, he can't see any breathing or see any movement (the expansion of the chest/abdomen and especially with the panting necessary if on the verge of death). So Kohaku is having the same panting, so she had a vital spot shot by Stan too. So this brings up a new conundrum. Will the manga team be willing to take the "Game of Thrones" approach and be willing to kill off major characters? I guess in theory, as long as the hole is filled with blood, it could revive the dead in that new and healthy tissue is created from the stone upon revival. But that is the only hope. It cannot be an empty hole for sure, and that's what happens with bullets (especially high caliber stuff like what is being used).
I loved the detail Bochi put on Kohaku's face when Hyouga takes Stan's shot/shots in her place. She realizes that she was going to die then and I guess guilt takes over her. More importantly, it shows the mutual trust they have for each other. Hyouga thought Kohaku was the best candidate to get the com device destroyed and willingly (any hesitation would have not blocked it) and Kohaku has the Senku-like blind trust in his friends.
I was going to question how Stan doesn't react to Kohaku since he is just as fast, until the manga team added the panel of Stan's gun still smoking. There should be a huge magazine, but in theory, Stan wasted his entire magazine overkilling Hyouga. This ties in with Kohaku potentially not being shot in her heart because Stan might be a Lilian fan/some mercy to women. There has to be something since he has the magazines to reload on him. He sees the intent and chooses for it to be executed. Maybe he's so cocky that he doesn't think he needs communication to kill Senku. So if anything, it's a combination of everything.
BUT the biggest deal is Tsukasa fully trusting and to the point of blind trust, in technology and Senku. Since his entire character was built on hating it, and it proves rightly so since the special forces are indiscriminately shooting out the guys' hearts, it was a beautiful emphasis to have the flashback of trying to get Chrome to give in, his text, and the silhouette of his heart getting shot out. I was expecting him to be fully trusting of Senku, but to have blind faith in Why-man's technology shows how much Tsukasa has changed.
I really hope we get the normal pacing of Dr. Stone so these characters are dead for only a few chapters.