The two-team challenge appears to be a model of a satellite. It looks like it might combine a race between two teams and cooperation as well. The first team to push their lever knocks down one of the solar panels, and makes a radar dish on top of the satelllite lean towards their side. When the other team presses their side, the other solar panel falls down. Mabey both teams get points if both solar panels are down, and the team whose side the radar dish points to gets a certain number of bonus points. See pictures below for demonstrations of the model being activated.This model is titled "dam flood". The "flood" can be removed from the dam, but we aren't sure what needs to be done with it. This is a model of some power lines. There are no marks for daul-locking or placing it, although as you can see in the picture, a section of a sidewalk lines up with the power line base perfectly, so it might go there. Since it isn't dual-locked, it seems like the robot has to move it somewhere. Judging from the theme of the challenge, the robot might have to take it away from somewhere and bring it back to base. Two models of wind-powered generators. There's no markings for their placement either, so we don't know what to do with them at this point.
These two sets of models seem to have the same challenge, but it's hard to tell what that challenge is. Right now I'm thinking the red tower has to be removed from the "field" on the mat, or maybe just moved anywhere. Although the challenge could just as well be to remove the two non-red towers.The pieces also included these four trees... any ideas for a challenge with these? Bonus objects?
Anyway, that's all of them - makes for a long post, doesn't it? :P