Welcome stefnuts,
Uncleal is right about the Track IR, after you use it you wont know how you lived without it. You don't need Track IR5, IR4 works perfectly well using IR5 software, also I prefer the hat clip.
Some of the planes have a really tight view, the Spads in particular, but if you ever really looked at pictures of the planes you can see why. There was stuff all around the pilots and wings blocking the view, but you get used to it. If you really want to see what you are doing I recommend the DH2 for a few flights. Just be careful of stalling out so get some altitude, and fly against the E3.
Also in quick combat you can set where you are starting, ie, altitude or on the field, the relative skill of the enemy, and what type of mission you are flying. Freeflight is great if you want to get used to the planes as enjoy the scenery a little .
By the way, don't be concerned if you get killed a lot. It took me years to get 17 hrs (literally). It is easier in the first part of the war, but a lot more exciting with better planes towards the end of the war. I personally prefer the spring and summer of '17, the weather is better and planes are good.
Have fun,
Beard