Maneuvering. Or some British spelling.
What rockets can budge that shot enough to prevent a millimetre of difference flipping it end over end?
Wait, would that actually happen? Probably not, now that I think about it.
Whatever, even if it doesn't, my point still stands, that kind of shot could probably clear the length of the planet in a minute or so, that thing budges even a tiny bit, it hits the space magic wall or nothing at all, rockets or no.
((But that isn't the only factor, apart from KSP physics not being the closest to reality, think about the ship itself, where would it have to be for the guns to line up? If the guns are portside, it would have to be vertical if and only if there was one gun on the very end of the portside, if there were some on the front, you better hope they're gonna be bottom mounted, otherwise there is no way one's gonna get in there.
And even if the stars do align, an inch of difference means it impacts the wall and not go through the hole, making the entire exercise useless.))
((You know that in space, ships can rotate to point in any direction?
The actual problem with the plan is that the ship has to actually get into the correct orbit to drop it's payload, which could take like an hour if they weren't already prepped for orbital bombardment))
((If they are able to alter the course of the payload post launch then it would be far easier so what about just dropship nuclear bombardment?))
So with dropship bombardment, that thing is going at ludicrous speeds, and would require at least a turn of 45 degrees, at max, 90, you can't do that with manoeuvring (Is that how you spell it?) rockets.
And yes, the ship can point in any direction, but, and this is a big but, they would have to point the cannons in space, to fire near perfectly parallel along the planet, that is constantly spinning and moving in a circle, fire it and keep it totally steady through re-entry and the entire flight while said giant bullet is moving at speeds a high speed camera can only catch a frame of, then perfectly hit the hole in the shield.
or they could fire a bigass lesho rifle shell straight down a few kilometres or so in front of the dome and have it adjust its trajectory so that it curves upward and ends up flying straight through the hole on a lateral trajectory with 80-90% of its straight fall impact force.
doesnt need to be seventy tonnes of steel, just a megaton or so nuclear round.
I think you still need to aim with a LESHO, buddy, there's always something called a turning circle.
Alternatively, lasers?
Lasers?
Mmm, could work, but I guess it depends on how it interacts with the field, there's only so much of an angle you can fire that laser at and still clear the hole, so hopefully the hole is where we can hit the spess god directly.