Advance Wars: Defeat Adder in Showstopper 2

Q: How to defeat Adder's units in Showstopper (2)?

Build infantry and artillery to form a defensive wall against Adder's initial assault. Capture the northern port and clear out his powerful southern units, including a Neotank, before taking the lab city to unlock Mission 20.

Q: When do new units arrive in Mission 18 Advance Wars?

Build infantry and artillery to form a defensive wall against Adder's initial assault. Capture the northern port and clear out his powerful southern units, including a Neotank, before taking the lab city to unlock Mission 20.

Q: How to capture the lab city in Advance Wars Mission 18?

Build infantry and artillery to form a defensive wall against Adder's initial assault. Capture the northern port and clear out his powerful southern units, including a Neotank, before taking the lab city to unlock Mission 20.

Q: What units does Adder deploy on day 6?

Build infantry and artillery to form a defensive wall against Adder's initial assault. Capture the northern port and clear out his powerful southern units, including a Neotank, before taking the lab city to unlock Mission 20.

Q: How to unlock Mission 20 in Advance Wars?

Build infantry and artillery to form a defensive wall against Adder's initial assault. Capture the northern port and clear out his powerful southern units, including a Neotank, before taking the lab city to unlock Mission 20.

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Walkthrough

1
On the first several turns, prioritize building a large number of infantry units. Supplement these with 2-3 anti-airs, 2-3 artillery units, 1-2 tanks, and a recon unit.
2
Use the infantry to create a defensive wall on the west side to absorb attacks from bombers, battle copters, medium tanks, and artillery.
3
Employ tanks to engage targets beyond infantry reach, artillery to eliminate land units, anti-air units to destroy air threats, and infantry for the defensive line.
4
Continuously produce infantry and artillery throughout the mission. Keep anti-air units on standby for incoming bombers and battle copters.
5
By day 2, two recons will join your forces. Adder will deploy additional units on days 4 and 5 (two recons, a tank, an anti-air), day 6 (bomber, recon), and day 7 (two battle copters, medium tank).
6
Be vigilant about Adder attempting to capture the northern base to deploy units. Attack any mech attempting this to prevent it.
7
By day 8, Adder will deploy another mech and artillery, marking the end of his initial assault. Aim to clear this initial wave by day 12.
8
As you advance towards the eight mini-cannons, be mindful of Adder's units on the south side: a Neotank, a tank, and a medium tank.
9
Clear the sea units, which include a submarine and a battleship in each sea. You can use artillery from a distance or capture the two ports to build your own submarines.
10
Capture the northern port to prevent Adder from continuously deploying units from it.
11
To the northwest of the mini-cannons, Adder has two battle copters and a rocket. Eliminate these threats before concluding the mission.
12
Finally, capture the southwest city, which is the lab city, to unlock the secret Mission 20.

Tips

The mission plays similarly to the Classic Campaign version, but Adder has more units.
Use artillery to effectively counter Adder's land units from a safe distance.
Prioritize capturing the northern port to disrupt Adder's unit deployment.
Be prepared to defend against air units like bombers and battle copters with your anti-air units.

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Mission 18: Showstopper (2)