Both of these mechs are lacking their proper six variants, and thus, they need more love.
Osiris D:
2xMRM-10 - Arms
1xNARC - Nose (like the Mgun on the Osiris Prime)
Buffed armor
1 free ton
1 dual heatsink
MASC
Heavy hunter. Get a pair of these or one and a Raven D, and use it to hunt down slow mechs and tanks. Not much self defense on them, but the MASC allows them to get keep enemies out of their minimum range.
Osiris E:
1xLight Gauss Rifle
2xSmall Beam laser
BHP
GECM
MASC
1 free ton
Low-ish armor.
Rage inducing sniper, which is hard to detect, hard to catch, and will know where you are. Pathetic at close range combat, but god help you if a pair finds you out in the middle of Deathvalley.
Owens D
2xSRM-6
3xFlamer
Heatsinks
MASC
The Owens' B bigger, meaner brother. Pathetic at attacking fast movers, but it'll do tremendous damage against slow-movers and battlearmor.
Owens E
2xMedium X-pulse laser
3xSmall X-pulse laser
MASC
Lots of heatsinks
BAP
The Owens' response to the Uller C. Faster and harder to hit, and equipped with some sensors, but harder to accurately do damage with when on the move.
Post yours!