Well, I don't think it's so difficult, let's make a TODO list to make this quest possible :
- create the 3D object and add it in the BSX file of the field (or at least, copy/paste it from another field file)
- add a new entity in the field script
- add the init script of this entity, which basically associate the entity to the 3D object
- add the main script of this entity, which position the entity on the field and display it or not, depending on a variable
- add the onTalk script of this entity, which add a 1:35 soldier item to the inventory and set the variable
For me, the only unknown data are :
- the variable to choose, it has to be not used by the game
- the field position of the object (for this, I think we need a walkmesh viewer which display ID and coord of the triangles, perhaps Meteor can do it ?)
Almost everything else can be done with Makou Reactor.