Invisible shouldn't even be an option in this type of game and should be removed. If a JTAC is in a position where he may come under fire before you have the chance to control him, then the JTAC isn't in a proper position. Let's go with realism and a challenge here. Place the JTAC forward, but still within cover and let the player dictate where he'll call fire from. Why not? There's no reason that the JTAC already has to be in position at the start of the battle. Let us do the work.
I know this is beta and I'm ok with bugs. But there's a lot of conceptual issues that need fixing. Assuming the intent here is realism. I do look forward to seeing the updates though, thanks.