RS [Question] Japanese grenade traps

As the title shows - some questions about the 'nade traps from the japanese side:



1.)

If I deploy them into ground - how long they will stay?

Til I die?



2.)

Can other japanese players run over them and trigger them?





3.)

Can american soldiers see them?

Can japanese allies soldiers see them?





4.)

If I deploy 2 into the ground, pick up another 2 from a death body -

how long the 4 deployed traps will stay on map?





5.)

If they are visible for american soldiers - can they trigger them by shootings?

If they are visible for japanese allies - can they trigger them by shootings?





Thanks ;)