I heard that some submarine players complaint the submarine at the moment is too slow to catch anything, luckily the next patch on 22Dec will buff their speed a bit that should make submarine players happy.

However,many BB players said that the hitbox of submarine is too small right now, make it almost impossible to hit them. I suggest Dev enlarge the hitbox of submarine, make them as least similar size as in NF1. Otherwise it's very hard to land any shells on submarine before they dive or teleport. Just my 5 cents.