This is a model of Liberty Prime from Fallout 4.
I took the model from the game, edited, split and repaired it for better printability.
Most parts have a big surface on which you can put them, so you won't need raft. There are two versions of the torso front (006a and 006d) - 006a is a more 'original' version while 006d has some of the details on the back covered by flat areas (probably any support may damage this parts and I couln't print it completely without support).
If you scale the model down be careful with the Torso back - the version you can see in the pictures is scaled at 50% and as you can see on the back side most of the fins on the nukes broke apart (and I think, I should use a different glue, this is the first PLA-part I glued).