Talk:Sentinels/@comment-63.155.240.49-20150201111210/@comment-8256051-20150313141835

Companions have a separate xp share, so whether you use only one weapon or two or three won't affect the xp gain of your sentinel.

Just do corpus mission with lots of ennemies (defense, excavation, survival, interception), since they don't have as much aoe as the other factions, your sentinel is less likely to die. T1 and T2 void might work as well.