Use the latest Top of the Tree special and explore a Tech Tree branch that leads to the crown jewel among French vehicles. While the line consists predominantly of fast light tanks with typical French autoloaders, it culminates in two versatile and very dangerous medium scouts.
The 
X 
Bat.-Châtillon 25 t at Tier X is certainly the highlight of this branch. It might seem small and humble, but this medium tank with a powerful autoloader can cause big trouble on the battlefield. Each of the 5 shells per clip can deal 390 points of damage and penetrate an average of 259 mm of steel. This potential burst damage is high enough to make short work of any opponent that gets ambushed by a sneaky assault. And catching an enemy off-guard is surprisingly easy thanks to a combination of a small silhouette, good camouflage values, high acceleration, decent maneuverability, and a top speed of 65 km/h. It is the perfect tank to isolate and take out unsuspecting opponents.
However, keep in mind that a lack of armor means even tiny mistakes can cost valuable HP. It’s better not to rush in, but to carefully scout the battlefield. Wait for your heavy tanks to distract the opponents before swooping in to unload the finishing blow. The Bat.-Châtillon 25 t is also an excellent scout interceptor and artillery hunter, so keep an eye out for enemy light tanks or swiftly relieve the other team of their biggest guns.
Make your way up the Tech Tree branch from April 20 at 07:00 CEST through May 20 at 07:00 CEST (UTC+2) and take advantage of great discounts and missions all the way to the top. Don’t forget that you can also purchase an extra boost if you want to speed things up!
Available from April 20 at 07:00 CEST through May 20 at 07:00 CEST (UTC+2)
You’ll have something to fight for every day for a month! This includes 
XP per vehicle every day, Crew XP bonuses, and other significant rewards to help you reach Tier X. You can find more information about the missions below:
Crew XP
Reward:
x2 Crew XP
Objective:
- Play a battle
- Place among the top 7 on your team by base XP earned
Restrictions:
- Only in Random and Stronghold Battles
- Only available for the vehicles featured in this special
Damaging Push
Rewards:
6,500 XP
1 Personal Reserve: +50% to Combat XP for 1 hour
Objective:
- Deal 20,000 damage over any number of battles
Restrictions:
- Only in Random and Stronghold Battles
- Only in the following vehicles:
- Can be completed 10 times per account
- The XP will be credited to the vehicle you complete the mission with
Push Through!
Rewards:
- 20,000 XP
Objective:
- Deal 200,000 damage over any number of battles
Restrictions:
- Only in Random and Stronghold Battles
- Only in the following vehicles:
- Once per account
- The XP will be credited to the vehicle you complete the mission with
Bat.-Châtillon 25 t
Rewards:
1 Large Repair Kit
1 Large First Aid Kit
1 Automatic Fire Extinguisher- 1 Personal Reserve: +300% to Crew XP for 1 hour
Objective:
- Play 5 battles
- Place among the top 10 on your team by base XP earned
Restrictions:
- Only in Random and Stronghold Battles
- Repeatable
- Only available for the X Bat.-Châtillon 25 t
That’s the EBR 105, has been since WG made the daft choice of adding cars to a game where they do not belong (and not simply because they have wheels, that’s also a daft argument).