why there is a smoke icon on the minimap on the second screenshot when you requested HE fire?
Because the second spot shows a different place than that one on mini_map.
That minimap is actually a copy from the first screenshot for some weird reason, a solar flare or something
Excellent, I would just suggest to change the text of "Current spot by" to something like "Fire mission request by". More immersive IMO. But if you did it this way not to confuse the newbies (and lessen the amount of text on screen) I understand ...
The text appears in the "kill chat", together with kill messages, and it may disappear very quickly after, for example, a lucky grenade throw (but you can make it reappear by clicking Next/Previous Spot, even if you have a single spot ATM), so I think, it's better to keep it as brief as possible. Perhaps, even "Current spot by" is somewhat long.