Me and my son, play this against each other all the time LAN 2 computers,
IP etc., but we play sub vr sub, ''team challenge' .... long range torpedoes. kill each other by sound, or top of the water . using both patches To play. Follow torpedoes, SH2 is clear under the water by turning off ''FOG'', shallow water, periscope depth only deep ....love these two games.
my input good day.