(Going to break up my army into squads.)
Lewis took a position in the sky to stay out of reach pf the snails. he tried his best to read the snails actions, and found them to be quite coordinated. In the time they had spent messing with Carl they had coordinated many tactics to surround them.
The first group of snails that had taken out Carl consisted of 6 snails, and were the closest to the others. The prey had escaped into the trees as was common tactic to escape them. The snails surround the group of trees in a bout a 10 foot radius, then poking there heads out. They look at the tree, and with a gurgling sound all spit out a green glob onto the tree trunks that instantly starts eating through the wood.
Squad 2 and Squad 3
2 more attachments of 6 snails each moved to the East and West side of the trees about 30 feet away from group, and started to slick there way up the trunks of the trees and into the branches. The snail's slime doesn't immediately burn the tree like the ground since it needed to reserve it's acid to climb. Once in position the snails at around the same time the middle ones start firing, set up to fire at any one that tries to leap away in there direction.
Squad 4 and 5
Consisting of 10 snails each, these attachments set up a larger circle mimicking the middle squad except covering an area of 30 to 50 feet around the group. They were hidden in the brush ready to fire on anyone that got on the ground to try to escape.
Squad 6, 7 and 8
consisting of small groups of three circled around the area burning trees down with their acid spit. Always making sure the tree fell away from there comrades, and ignoring the trees with snails already in them.
The other snails apart from the squads stayed back on standby to back up or replace there comrades.
Lewis tries to relay as much of this info as he can to the others, but it took him a minute to do so, which only gave the snails more time to prep.