I've been working on camera for a bit and this video shows it. Player will be able to fast switch between them during play. There will be a fast overview of entire map useful to see where the shell landed and decide how to adjust things for next shot.
Game will be a team-based real-time tactical action shooter, but I still didn't fully decide on all the features for single player release. I do know what the final game will look and behave like, but there are a couple of features that could be a single player specific, would not make sense during multiplayer game, like replay. Replay would not be possible during multiplayer game because the player would be frozen looking at the replay while others are firing at him. I'm not really sure whether to implement replay feature at all.
I any case, if you have questions or wishes don't hesitate to contact me. Thanks!