You need only range from talent point's.
I have shot 2 ship's alone so far with this. Could someone confirm if this is working on other server's or is this just something with my server
Edit: Im testing this. Now I'm shooting event in 6 map's. I can shoot it without it shooting me but sometimes even if I use voodoo amulet it start shooting me again so this need little bit more test
Edit2: Okey, it seems like it doesnt work well with higher event's. For 1-5 event ship it work perfectly. But I tried 6-15 ship and it work for some time but event start moving after like 2 minute's.
Someone who have 2 ships with range talent's could try if you shoot it from 2 opposite direction.