I genuinely enjoy just playing the game in part to see the graphics/scenery of journeying through a "ghost ship". As such, while I do not have infinite rocket launcher, I am happy to play with those with it who enjoy just running through Ghost Ship blowing stuff up with ease. I am at Level 50 now and have S ranked all levels. I hear some don't like playing with IRL players, but again, for me I have already done what is needed to get the trophies and just find it relaxing (to each his own!) journeying through the ship and all.