The Keeper is mid-long range skirmisher and defender. Biggest issue with the Keeper is minimum ranges, he must be supported by the rest of the team and rely on them to aid in defending the firing line. Another option is to take 2x LPLas like the "Beater" build, but keep the LRMs. This mech excels when sticking in cover near your main force. Allow your group to distract the enemy firing line while you pop up and deliver your PPCs. While cooling down, you can support your team from behind cover using the LRMs. So far, this has been my highest scoring build for the 1N.