I was thinking about a new multiplayer mode for the Orxonox multiplayer. It's called the slicer

Slicer multiplayer mode:
Imagine two guys cutting a big tree with a saw. One holds one end and the other holds the other hand of the saw. Then they cut the trunk of the huge tree and the tree falls.
This is in fact my idea for a multiplayer mode. It involves two attackers and some protectors. Depending if we have something like assault (where the teams change from attacker to defender after some time) or something with bases, we also need defenders in a team.
The attackers have to search for two items in the level. They build the slicer. One item is similar to a gun, the other one is just some ball or sphere. The guy with the gun part has to shoot at the guy with the ball. Then the slicer will span between them. The attackers are defenseless when they carry the slicer parts, but they can drop them temporarily and pick them up later.
While the slicer is built up, the attackers should not drop the slicer or lose sight of each other. If the do, the slicer will be teared down. The slicer has a limited length. It can't be stretched too much. The color of the slicer will show the attackers if they have to move closer to each other.
Now with this slicer the attackers will have to destroy the target. We will have to think about what this could be, because a tree might not be so logical, but we'll find something, I'm sure. Anyways: Destroying will be easy. Just run with the slicer through the target. Of course this will take some time. The attackers can accelerate the process when the push the slicer against the target. But then the slicer will get weaker and the attackers have to stand closer to each other. The target will be at a place where there is not much to hide. So the attackers have to expose themselves when they want to cut the target faster.
Defenders will have to shoot one of the attackers to tear down the slicer. We could either use one slicer per level or a certain slicer per target.
Hope you got the concept and I look forward to hear from your opinions. I also don't think it's too complicated. It's just the slicer whose functions have to be learned.
Then I have the idea of a new tracer weapon:
Tracer weapon: The tracer weapon has a secondary fire mode where you can target a player in your view. Once your player has become the target of the tracer gun (just click where the player is with your right mouse button) he will be hit by your shots wherever he runs to. Of course this will be limited to only 5 or 10 seconds. Your shots will follow him around corners, into shafts and behind crates. There are two possibilities for the target to get away: run behind a door and close it. The shots will follow the way the player took and when there is a closed door, it's the end of their journey. Also the target can run far enough so the tracer gun won't be able to trace him anymore.
Imagine you get shot by this gun and then jump down a few shafts to put a great distance between you and you're enemy. The tracer gun will not work on great distances. Also imagine you standing on top of some house and your enemy tries to shoot you from far away. The tracer gun will not be able to trace your movements. Of course the enemy could shoot you with a sniper, but not with the tracer gun.
Of course the tracer guns first fire mode are normal shots which will fly straight if there is no target defined beforehand
Hope everything is explained good enough for you to understand.
I know at the present state those implementation are not possible, but let's keep those ideas until we can.