Help wirh 2nd Mission

[horrgakx]

I've been put on this thread from another - I had the same (stock Steam version) and I chased him off the side of the map. I varied between 300yds and 500yds distance, even criss-crossing over the top of the sub, constant pinging by me and sonar bouys. Also, I didn't know that sub could drive for that long amount of time at a constant 15kts...

Anyhoo, I scrapped that one and restarted the mission completely. In a very short space of time of doing the same stuff the sub "surfaced" (actually it looked more like snorkel depth). I have no idea what I did differently.