Finally I have finished the last task for the projects for this semester. The bee with my particles looks like as follows:
The bee model was created by Avinash which looks quite cool.
So since initially the blind player has no clue on the mechanics, I programmed a fire fly behavior which rotates 90 degrees at a time in an orbital motion around the blind player and emits fire triangle particles. The fly basically has an audio source. Only the deaf player can see the bee but the blind player cannot. But the blind player can hear the sound of the bee. As soon as the blind player identifies the sound direction of the bee the bee rotates by 90 degrees. These events are programmed to occur 4 times during the tutorial. This prepares the blind player and helps him learn the mechanic during the tutorial.