Vtol and trim to aim. Feel free to use this, just remember to give me credit and tag me in the comments. I want to see what you can come up with for this. I dont remember who the gun is from, but I didnt make it.

Fictional Performance:
Where this cannon lacks fire speed, it makes up for in calibre and accuracy. It is controlled by remote, and uses a camera feed from a satellite for long range or the built in camera for closer ranges. It is very precise, with only a a meter of error at up to 80 Km. The shell is capable of destroying most armor or military assets. Radoio stations, bunkers, etc. It is also highly mobile, and meant to be mointunted on war trains, or even trucks. The rof however, is not so good at only 1 or 2 rounds per minute. It depends on the skill and speed of the loaders. It must be manually reloaded:
1. open the breach
2. remove the previous shell
3. load next shell
4. close breach
5. reach safe distance