open up entity
when you have selected desired map scroll down to proj tag
find the needler shard
now open it up in meta editor and scroll down to attachtments
there should only be 2 the first one will be changed to wraith plasma vent
the 2nd change it from cont tag to ligh and then when its in the ligh tag
scroll all the way down and find scenarios/objects/lights/yourmap/sphere blue
every map has a difrent set of sphere colors choose any you want
now while still in the proj-needler scroll down to minimum maximum explosion delay
change both to 30 so it doesnt last forever lol
then go down further to air gravity scale and change that to 1 so it doesnt float
then in weap tag change the projectile of magnum to needler shard
that should do it its really fun for dark maps here are some pictures









also if you want it to be like my sentinal gun dupe the needle tag first and do the same thing
but change delay to 0 and the ligh to wraith plasma vent and 1 more thing
you can add a chainspan effect to 1 of the grenades and when grenade explodes the flare
gets shot up into the air and will land on the ground if you change distance to liek 50+