Enemies

The standard enemy found throughout almost the entire train.

Blue Harvest security personnel assigned to specific rooms and installations. They fight exactly like Terrorists — the walkthrough just labels them separately by role.

Show up in larger numbers during the train's big assault set-pieces, like the Car 14 evacuation or the Car 11 roof landing.

A guard paired with a trained attack dog.

Drops off the train's roof and lunges at Jack to detonate on contact, functioning like a mobile land mine.

A gun-armed version of the small robots.

Scattered loose on the floor in a couple of late-game areas.

The easiest fight in the game. Fires three crossbow bolts at a time; dodge, duck, or hide behind one of the four columns in the arena, then return fire once he's done. He'll occasionally rush in close, so be ready to land shots before he reaches you.

Sweeps the floor with an undodgeable flame attack; the only way to survive it is to jump onto the second train running alongside the Blue Harvest. He always follows you to whichever train you're standing on, so keep switching after every attack and fire whenever you get a clean shot.

Throws damaging grenades from short range, sometimes crouching to dodge your return fire. He hits noticeably harder on higher difficulties.

Fires a barrage from twin laser weapons while chasing you, then shoots the surrounding mountainside to rain boulders down on the train once he lands a hit. The walkthrough itself calls this the worst fight in the game.

The final boss, fought from a helicopter. He constantly repositions and fires missiles as you sidestep along the train's nose.