Replace the free revolver and speedloader nukies get with a M95 and pouch of ammo

[Lady Birb]

As of late a lot of nukeops aesthetic has been moving towards more modern weapons, so them starting with revolvers feels a bit outdated. The M95 also isn't used anywhere since Infiltrators get tranq pistols now, so I feel like replacing the free revolver with a free M95 (and giving them a full pouch of free M95 ammo to make up for it's lower damage compared to the revolver) would be a good fix to both.