Both games are great. I love them both equally. What really makes each game amazing are the mods. SH3 has GWX and SH4 has TMO,RFB and sooner or later the new GWX4. Also you got to look at it this way they are both in completely different theatres of war. SH3 you take on the Allied Fleet as the BAMF and later on you become the underdog. SH4 you are Democracy fighting against Imperialism cause the Japos bombed the crap out of Pearl Harbor. SH$ is way better looking than SH3 and is a blast. But SH3 has the better atmostphere and makes you feel like a real Uboat captain.
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