Forum:LAN party and question

Well i was wondering if being in a Lan party with 2 OTHER people will change the drop rates we do on craw runs..Because ive been online with the same two freinds and we have gotten better drops.. But no pearl..Now we do LAN party and do craw runs and don't even get oranges as often as online.. We have done about 190 runs on craw all together and NO PEARL on LAN or on ONLINE! Is their a difference at all? And the question i was wondering if anyone might be able to dupe me a decent pearl anyone besides the shotgun or pearl..Im on the PS3 name is PSN: Big_thora  Thanks in advance