Panther's Weapon Specialist Carbing Achievement may be an oversight.  

Other Mech Achievements that specifically name Carbines are:   

Arachnos - 900 kills

Aegis - 900 assists

Bastion - 450 kills

Surge - 420,000,000 damage

Panther - 710,700,000 damage

I understand not wanting to spend rescources on a weapon that is unpopular, but the weapon doesn't have a 16 energy varient.  Panther's increase of 169% over Surge's requirement would make sense if there were a 16 energy weapon.  This achievement requires Panther to equip 2 Carbine 12's and achieve nearly double the amount of damage that is required from Surge.  With a sustained DPS of 8,856 (Scape's spreadsheet) the achievement for Surge requires 47,425 seconds or 13 hours of direct hits compared to Panther's 80,250 seconds or 22 hours, 17 minutes and 30 seconds.  These times only include fire hitting an enemy mech, no load times, movement etc.

May we please have the Panther/Surge's Achievements reduced to 162,800,000 (in line with Silverthorn's Viper achievement with calculated damage reduction) or the Autocannon/Carbine specific achievements be recatagorized to be achieveable with general "Assult Weapons" like Lancer, Juggernaut, Slingshot, Puma, M.D., Ares, Killshot, Redox, Brickhouse, Scorpius, Solis, Mimicker, Deathwalker, Outlaw, Volti, and Blizzfrost?

In comparison, Silverthorn's Weapon Specialist achievement is 252,200,000 damage with Vipers.  Vipers substantially outshine Carbines and have a 16 energy Variant.  

Sustained DPS:

Carbine 12 - 8,856

Viper 12 - 13,725

Viper 16 - 18,302

(Thank you Scape211 for the data required to make this request)