Major changes:

Visual indication of enemies by type (normal-elite-commanders-unique).
Ammunition boxes in arsenals.

New weapons:

SMG Bullpup
LMG
Assault rifle with grenade launcher

New enemies:

Zulu squad
Black Ops Snipers
Robots with laser rifles
Soldier with assault rifle with grenade launcher
Bodyguards with shields
Rebalance of unique enemies, add. abilities - Energy Shield, Flash Grenade, Anti-Gravity Grenade.

Various bug fixes.