Wow! Thanks guys, I wake up and there are a lot of good comments and feedback.
With the names, I wanted to say thank you for all the support and encouragement.
Ashkin: You can still shoot and kill enemies you can't see (like in real life I guess). But the Zog should have been visible, so I guess there are still some line of sight issues to work on.
Spooner: I need to think about the walls a bit, especially to do with line of sight. The Rosette is supposed to change colour on individual sections. It's not clear if you've not read the posts I made about it. The colour indicates the action state if you turn to that direction, i.e. red = can't shoot, orange = can shoot, etc.. Good points about the mouse.
Joshua: Yep, tool tips will be in.
Eigenbom: Moving the view in a reversed direction (i.e. google maps style) will be an option. Yeah, not completely sure about the cursor under the compass markers either, but it's too obscuring on the top.
Solarlune: Sorry to hear you killed yourself..
Good suggestions on the right-clicking and WASD keys, I can certainly add those as well as the arrow keys.
Birdof, Franklins Ghost: Thanks!