At present, vehicles which are spawned as static remain at rest unless acted upon by an external force (either kinetic interaction with enemy ordnance, which moves them to the afterlife, or commands from a player, which move them over yonder).
They do this even after engaging an enemy target, including in scenarios where their own detection is assured or reasonably expected. This makes it trivial to engage stationary vehicles even without first respotting them.
It is also stupid.
My suggestion is this: upon either ceasing to fire their primary armament for a number of seconds, or an enemy aircraft coming within reasonable assured detection range of them, static vehicles not requiring the cooperation of other vehicles (read: Stratolance radars/TELs) or specific positions (supply trucks) should simply move a few hundred meters in a random direction.
Since cruise missiles have limited ability to divert in terminal, this is all-but-assured safety from them, coincidentally serving to slightly nerf Darkreach hopping, and it will give them much greater ability to evade other anti-ground munitions while creating a more engaging/varied M/SHORAD environment for players to combat. In particular, this would pair nicely with more advanced radar toggling behaviors for RSAMs, but this is by no means a must.
#Static vehicle repositioning
twilit lark
solemn kindle
may break some missions
cedar obsidian
may break some missions
"Always stationary" checkbox, off by default, enabled on all pre-update missions, unless the vehicle in question has a waypoint
rain token
Very good idea, particularly important for any kind of SAM system. Having to re-spot vehicles with your 6km (i think) optical detection would have more challenging (but imo, in a very good way) A2G combat and would help carve out a more useful niche for scout vehicles and future scout aircraft.
This could make IR SAMs hopefully a real threat for the first time, as they could, (in a realistic way), be harder to detect, making it trickier to plink them from far beyond their own range as is done so much now.