Tank (the bridge)

Chapter: C2 · Edonia: The Street, the Bridge and City Hall
Where: 2-2 The Bridge: the collapsed bridge (Chris) and a sniper perch in the building (Piers)

Weak point

The red fuel tanker behind it: one shot destroys it

Bullets won't do it: it's a two-person job. Chris draws the tank forward and Piers, from above, shoots the fuel behind it. One shot destroys the tank and most of the J'avo on the bridge.

Reward

Passage over the bridge. Right after, Serpent Emblem #6: on the beams under the bridge, by the first support column. It's Piers's in practice (Chris only from a specific angle).

Medals from this section: Killed a paratrooper enemy in mid-air and Gained control over the bridge.

Step by step

Split, Chris: the bridge collapses. Crawl to Finn on the far left (anywhere else and you fall); tap sprint to crawl faster.
Chris: take cover behind the truck and kill the turret gunner on the right as soon as you can. Move forward to draw the tank out. There's a sniper ahead: kill him or rush the ladder at the end of the bridge (on the left, past the tank).
Piers: Chris throws him over the gap. Follow the soldier; at the 2 bunkers, grenades (they're bunched up). From the perch, snipe the gunners and, when the tank inches forward, one shot on the red fuel tanker.
Chris climbs up and lowers the ladder for Piers.
Back together, push the white container and hold the line: J'avo parachute in while Finn sets the explosives.