Hephaestus management:
1.You say we need an automanipulator for the planetary mass compacting thing. Can we make it ourselves, or must we import it?
2.If we must import, can we just have it shipped over, or does the Sword need to have some operatives go on a special mission?
3.When will the spears be done? You just said that they'll be done 'in time', but they're the only SMF thing that's currently being constructed. And they're hogging a construction crew.
"Experiment":
4.What systems do we have to disable something contained in the chamber? Ceiling turrets? Paralytic gas? Massive EMPs? Kinetic locking automanips? Nothing?
5.If at any time the gun acts dangerously, like shooting an EMP Bomb, or the wall, activate one of the EMP bombs or an in-built containment system that could disable the body.
6.Wait one minute for the gun to respond. If it doesn't, ask if it is capable of speech, and point out that it's only options are to communicate with us, or to be locked up again, and that I would greatly prefer the former. If it doesn't respond quickly, mention the fact that it's in a highly secured military facility designed to contain anomalous things like itself. Wait an hour, and if the gun still hasn't responded, leave and tell the research team that they can handle this. (I.E. assign them to analyzing this artifact, since you said research teams can analyze mission stuff.)
7.If the gun does respond that it can't speak (through nodding or head shaking or something), ask it if it can write. If it indicates that it can, say that I will disable the body that it is currently in, then provide it with a new body and a method of writing. Ask it if it is willing to go through that procedure, then regardless of it's response, disable it, using an EMP or whatever is built into the containment area.
8.Once it is disabled, have the room opened up, then have four robosods enter, armed with goop throwers. Tell them to goop the disabled bot if it moves, and to not touch the gun. Behind them, bring in the tied up robobody that had it's wireless comm stuff removed, carried by two unarmed robosods, one of whom has a datapad. Have them untie the arms, but hold them securely. Tell the goop sods to goop the unarmed sods, and the robobody, if any of them act aggressive towards any of the goop sods.
9.After containment is reestablished, have one of the unarmed sods force the robobody's left hand onto the barrel of the gun, without touching it himself. If possession isn't established, try other parts of the gun, but not the grip. If possession is established, have the other sod hold the body's right arm on the datapad, and explain to the gun that it can use this to communicate with me.