Quoting PossiblyImpossible,
Also, I'm not asking to rotate the camera, I'm asking to change the angle of the camera. One is more aesthetic than anything, the other can be helpful for gameplay. Both should be possible, however.
ah. i too find the camera angle too shallow, and find 55* to be my ideal angle.
now, the reason i know precisely 55* is my favourite is because i know the console commands to set the near and far camera angles.
they should be; 'cam_nearPitch' and 'cam_farPitch', i do believe you'll know which each does.
continuing on from this; it only lasts per-game (or maybe per lifetime of the program), so you'll need to do it again and again and again. for this i recommend you pop over to gamersreplays.org and find Sorian's mod-manager for the latest DG beta.
assuming there is one current, then go to http://forums.gaspowered.com/viewtopic.php?p=469265, and download my Console++ mod.
it might take some fiddling, but you should be able to get it working.