ChromeCrusher is a player on 2b2t. He began to gain fame in late 2016, after being able to find Fitlantis due to a new coordinate exploit that involved bedrock. However, Chrome was still able to find Fit 's underground base (that he was constructing on February 2017) even if Fit did not show bedrock. He likely located it by searching for the exact same positions of ores, dirt, diorite, andresite, granite, or even flowers in a world with the same seed as 2b2t.
Not much is known about him in the past, except he became famous when he was the first one to find Fitlantis. He did not grief the base, however this led to other groups being able to find Fitlantis and wage a huge battle there.
A few months later, in February 2017, Chrome returned and interrupted Fit's construction of a new base, but was unsuccessful in killing Fit. He also left a Chrome's Crusher sword on a gold cross in Torogadude's Theater and like Fitlantis, he did not grief it. He based with Fit and AlphaComputer at Rocket Town, and when it was griefed, he went on to destroy Summermelon.
His coord exploit proved that the bedrock pattern is the same for every world in Minecraft. This led to him being able to find underground bases easily, such as Fitlantis.