You look for the most decorated officer that was not in one of the armored trucks. You spot an Italian riding in one of the tanks with his head sticking out. A perfect target. You silently put his head in your sights while waiting your comrades in the rear to take the first shots. After a minute of waiting, you hear the piercing sound of a gunshot ring through the forest. Everybody in the army instinctively ducks and flinches, including the Italian officer. He flinches, then begins climbing down into the tank. You take the shot, and follow the bullet's trace right to the man's side. You didn't aim for a kill, you aimed for his bright red grenade. The bullet slices trough the black tab, arming the grenade. The grenade flew out of it's holster from the force, and fell straight down into the tank. The Italian officer felt the bullet whiz right by his side, and covered his heart in relief while climbing down and closing the hatch. You see the hatch lock, but then suddenly unlock. The Italian man opens the hatch again, a look of terror on his face, and tries to climb out again, but he doesn't make it. A shock wave flies, out of the hatch, followed by some flames. But the real damage dealer was the fragmentations ricocheting throughout the tank and embedding themselves in the tank operators and the officer. The officer went limp in the hatch, and you can be sure that the other operators were dead as well.
While the grenade was ticking, your comrades all unleashed their ambush, firing a few dozen shots at the foreigners, before retreating from their hiding spots and running like hell. You need to get away too, as some soldiers heard where your shot came from, and they began spraying in your general direction, ripping leaves and bark off of the tree you were hiding in. You were pinned down on top of your tree branch with no way to escape. Bullets were whizzing all around you, and your branch was becoming unstable from all the damage it was taking. However, you notice that the branch was connected to other branches of other trees by a network of vines. While lying prone on the branch, you take out your hunting knife and cut all the vines except for one connected to a tree opposite of the army. You then slither towards the end of the branch, causing it's base to groan under the extra weight. As you inch forward a bit more, the branch gives way, snapping the vine taut, and swinging you along with the branch towards the enemy army. Soldiers in your path dived out of the way, but soldiers farther back (all foreigners, you noticed) were still shooting at you. You positioned the branch between the bullets and you, blocking them. Once you reached your lowest point, the branch just grazing the ground, you cut the vine at the lowest point, releasing the branch while you still held on. The branch flew in a parabolic arc, and landed on the group of foreign soldiers, killing some and injuring the rest.
You continue to swing upwards, and let go near the apex of your swing, flying through the air for a moment before catching yourself on the branch of a nearby tree. Argos landed, and looked at you confused, probably wondering how you were flying earlier. You pull yourself up onto the branch, then quickly scamper down the tree, whistling for Argos to follow you. You run away from the army, until you can no longer hear the sounds of gunshots in the distance. Only then do you rest and get your bearings about your position. You never got a map from Millers, so you don't recognize where your were. Wandering randomly until you found a landmark would be dangerous, because you could run into enemies. But you had to get to the rondezvous or else the group would leave you behind.