A sub-reddit devoted to the MMORPG EVE Online. The Opportunity tutorial is asking me to equip a medium slot item and then a low slot item There are four types of ' slots ' that ships can posses, rig, high, mid, and low slots. These activatable modules will give bonuses to fleet members within range. They can only be fitted to battlecruisers, Damage · Logistics · Resource procurement · Capital only. This is just one chapter of our full EVE Online Exploration guide. Your second mandatory high slot item will be a core probe launcher or.