Although Britannic could theoretically manage to stay afloat with that amount of flooding, it would still cause the bows to sink dangerously low. The problem was that many of the portholes on the lower decks were open for ventilation in the hot Mediterranean climate.
There are several factors as to why Britannic sank faster then Titanic. One of them being the blast warped the tracks for some of the watertight doors causing the doors to remain open, another being the fact most of her portholes where open, going against the Captain's orders to keep them closed.
Bruh, why is everyone taking this so seriously? First of all, this is just a Floating Sandbox Simulation. Not supposed to depict the actual sinking, should be obvious. Secondly, OF COURSE IT'S NOT GONNA BE 100% ACCURATE STOP BEING SUCH IDIOTS. Thirdly, stop being so mad that it didn't happen like you wanted it to be. Grow up.
