Speaking of Fireflies and Tiger IIs, just yesterday in FH0.7 in Breakout 1944, I found the best way ever to hide a Firefly. If you find a short bush, a little shorter than a truck, and a big bush, taller than a sherman, behind it, and you park your Firefly in these bushes then you are literally invisible, but can see perfectly. Using the F11 view, I couldn't even see myself, and only saw the gun when I turned the turret.
Just a hint for you Kitty killers out there.