Ya know Rocky....I been reading your stuff.
I've never tried this in SH4....I used to shoot like that in SHIII, but I don't remember how I did it so fast.
Have to give this a try.....sounds simple. But I've just mastered the time consuming plot, spot, and keep adjusting till it's right in the battle/nav screen....then shoot. But it's a real time consuming job, and I've been taught to be sitting and waiting for them when they pass by.....so shooting has to be done fast.....to kill more than one tanker. So I'm going to give your method a try....I'll let you know.
About the thermal layer.....I thought you had to be right 'at' the line, not dozens of feet below it. This is good news.
Yup....I'll be knockin' up the difficulty level soon....
