The Archery range has only five different unit lines available.
The Archer line is the first available. It starts in the Stone age with the slinger. In the Copper age it changes to Simple Bowman, in Dark age it changes to Composite Bow and it ends with Longbow in the Middle ages. This line is useful en mass and for shooting over walls. The normal archers are rather cheap, costing only 30 gold and 40 wood and takes up one population.
The Javelin line only has two units. In the Bronze age you get the ability to train Javelins at the Archery Range and in the Dark age you can upgrade them to Pilums. The Javelin/Pilum is useful for countering other archers, as their missiles are effective towards other archers and the enemy archers arrows is not effective against Javelins. The Javelins are equal to the Archer line in regard to cost and population
The Cavalry Archer line is another two-unit-line. In the Bronze age, you can train the Chariot archers and in the Middle ages you can train Cavalry Archers. Cavalry Archers are useful for taking out Siege weapons as their speed can help them avoid shots and their ranged attacks help them to emply hit-and-run tactics. Chariot/Cavalry Archers take two population points, but is still rather cheap to train, costing 45 gold and 60 wood.
The Crossbow is the only of it's line. It can first be trained during the Middle ages. The Crossbow is the archer with the most damage in the game. It shots often take out normal melee and archer units with one shot, though cavalry takes a little more most of the time. The Crossbows takes a long time to reload, and should therefore be kept in the back lines of an army. The Crossbow bolts have a small piercing effect, meaning that they are extremely effective against massed units. Crossbows are also a good anti-ship unit, and can be used effectively to prevent transports from landing on your shores due to the Crossbows high damage and long range. The Crossbows is very ineffective on it's own however. If it doesn't destroy the attackers with the first barrage, it's long reload times and low health could be the end of it. Cavalry is very effective against Crossbows. It is advised to either keep other, faster archers nearby to keep up the barrage or use melee units to defend the Crossbows. Crossbows are extremely expensive, costing 100 of gold and wood. Crossbows take up one population
The Elephant Archer is like the Crossbow only one unit. It is usable Bronze age-Dark age. Elephants archer has short range and low damage, but they make up for it with their large health and armor. Elephant archers can be useful in a siege. By sending them in first, they can take damage by enemy archers inside the walls while still dealing damage and protecting other archers and siege weapons. The Elephant Archers are expensive, costing 120 food and 80 gold, also giving it the title of being the only Archer that take food to build. The Elephant Archer uses two population points.