The area exploded with sporadic gunfire, rocket-propelled grenade rounds and mortars.
The men were escorting a donkey carrying two anti-tank mines, 10 pressure plates for the mines, 10 rocket-propelled grenade rounds and high-explosive rounds.
Felix heard more bloop-bloop-bloop sounds, overlaid on more sharp concussions each time a grenade round exploded in the air or against a tree.
Another grenade round flew past Felix's head and embedded itself in a tree.
A rocket-propelled grenade round hit one of the vehicles.
New types of grenade rounds have been developed in the 1980s/90s to meet the requirements of modern battlefields.
A squad has a total of two launchers and 12 grenade rounds.
A single gun can be used to breech a door, clear a room, provide support with special grenade rounds, or even suppress a riot with some less-lethal rounds.
Thousands of AK-47 bullets and antitank rocket-propelled grenade rounds were pouring into the American positions.
Both the HK69A1 and the HK79 use 40x46mm low-velocity grenade rounds.