There a few event tasks which can't be completed following its instruction.
For example, zap a z-scout leader zombie. Initially I use electric peashooter to zap them but the task didn't get completed. Later I found that only if you use zaptail or lightning reeds to zap them can you finish the task.
Now there's another bugged task, which is to freeze a volcanologist zombie using any chiller plants. I have used numbing cabbage and iceberg lettuce to freeze them but none of them counts. So the task remains unfinished even though I am pretty sure I have frozen this zombie a lot of times.
Fix them quickly, thank you EA!
