I am always very suspicious of fan made calculations because most of the time the animators don't really care about the speed of the Spartan.
I agree with the Tank feat being at best a hyperbole and at worst non canon.
As for Cal's feat, while impressive, you have to remember that the Brute did not use all of his strength in the swing as evidenced by him forcing Cal away right after.
Mendez's statement is flawed and should not really be used to calculate adult Spartan strength. The problem comes from the fact that he says their weight is almost twice the norm and yet Chief only weighs 130 kg. So when you calculate we get 390 kg lift which is something a normal human can do.
When come to showings like the locke trailer which was made purely to show off the new spartan abilities we can it can.
Watch it again and pay close attention to what he does to force her off. He angles his swing so it is no long pointed downward and is instead more of a batting swing which push her off her feet. The only reason he would do this is so she would no longer have the ground as leverage. He wasnt able to push her down but he could lift her off the ground. This tells me that he couldnt beat her in terms of raw stength.
Yeah i never understood that. There are football player that way more and the arn't 6f 10in, that dont have alloy plated bones, and they dont have muscles twice a dense as normal.
What I meant about the trailer is that the animators didn't calculate his speed to be sure what they were doing is canon. Animators almost never check their work in terms of consistency in any kind of media, which is my I often disregard fan calculations especially when they involve a subject already littered with inconsistencies.
What you have to understand is that I do believe that Locke is capable of doing what he did in trailer as Osiris demonstrated similar capabilities in Halo 5 opening cutsene. What I disagree with however, is using a calculation and treating it as fact (not referring to you) when there is no canon source that confirms it. Animation is not always canon due to artistic freedom. For example the fight between Chief and Locke was lore breaking from an animation standpoint as it was far too slow.
So what if he swung like a baseball bat? He still overpowered her, knocked her off her feet and pushed her several feet away. In Canon brutes are much stronger than Spartans in Mark 4 and 5. Halo First Strike, Halo Ghost of Onyx, Halo Wars 2 all demonstrate this. Halo Legends has a lot of artistic freedom and much of it has anime-like qualities. The only time we have seen Spartans being superior to brutes in CQC is in Halo: Thursday War when Naomi in mark 7 kills a brute with a single uppercut, and in Halo Wars 2 when Jerome in Mark 4 Gen 2 hybrid takes on several brutes with hammers in close combat.
Master Chief should weigh close to 200 kg. He is 6 ft 10, has enlarged muscles and bones, denser muscles and ceramic bone coating. Apparently his weigh used to be 180 kg before it was retconned to 130 kg.
180 x 3= 540 kg. The current record today is 500 kg, so this would make John stronger than the strongest man alive without training to be a heavyweighter himself.