.ini
1) Resolution: UDKEngine.ini (only required for 1280x768 and res's higher than 1920x1200)
Code:
[SystemSettings]
ResX=
ResY=
2) FOV: UDKInput.ini
Code:
[Engine.PlayerInput]
Bindings=(Name="F5",Command="FOV xxx") //where xxx is the correct FOV value for your AR. Hit F5 while playing (not in the menus).
Start a game and press F5 (the FOV key has no effect within menus).
Some FOVCalculated values:
For 16:10 use FOV 100.39
For 15:9 (1280x768) use FOV 102.68
For 16:9 use FOV 106.26
Interestingly, the default FOV is 90 but the game natively applies FOV 100 to all widescreen reolutions, so 16:10 users may consider gameplay to be natively Hor+ and forget about it.
==Screen Change==
Hor+ world, Vert- weapon.
Actually the player's weapon model is Vert- up to 16:9, at which point it gets a different look with distinct proportions. I don't know which weapon aspect is best, but thanks to this the 16:9 weapon looks better than if it was only a Vert- version of the 16:10 weapon, if you get my meaning.
Two resolutions (1280x768 and 2560x1600) required an .ini edit.