As long as there was terrain it wasn’t too much trouble. Allows for quick pop-up strikes that give it limited reaction time.
Helps that they don’t have as much room to manouver compared to a plane
You can also spam and guide more agms than they can intercept at once unless you’re launching from far away
If someone has one trillion match in a vehicle but still barely maintain 1kd and 40% winning rate, that is the experience of them repeating mistakes bro those are not valuable.
About a month ago I met this player who had about 3500 games in their 2A7V but still only managed a 0.5 K/D, which really impressed me (not in a good way though).
They are roughly equal if we consider zone above gun level because this is what will be exposed in hulldown. Also keep in mind weakspots will be smaller with bigger inclines in landscape (from observer pov). And challenger will be able to shrink them better due to better gun depression angle.