When capturing the zephyr from the scouts, Eugene commands wasps to fly through tear gas and attack the scouts. The wasps would in reality have been neutralized by the gas almost immediately.
In the camp competition against the boy scouts, Wednesday uses a school jacket to zipline down to the tower and win the competition. Even if this jacket were made of chainmail, the friction against the metal wire would have sawn it in half long before she reached the tower.
When Wednesday picks the lock to the cabin in Camp Jericho, she uses two picks jammed into the lock. Picking a lock requires a pick or rake and a tension/turning tool.
Principal Dort is calling everyone to gather, using a bugle call. However, he's playing reveille (wake up), not assembly.