The 13 Hussars themselves are worth 2600 resources. The Guard status itself is worth 1600 resources (400 vet + 1200 guard). A total of 4200 resources sent in a single card ... that's nuts!
Look at the options the other civs have:
Not even the French shipment of 6 veteran Cuirassiers approaches the worth of the Winged Hussars ... What, it wasn't enough for ES to give Germany the best Mercs, they also had to get an 'uber' normal unit shipment, just incase they didn't have the gold for mercs yet? WTF?
24 normal Pikes
8 veteran Halberdier (no joke)
16 normal Musketeers
11 veteran Cassadors
7 veteran Dragoons
6 veteran Cassadors + 4 veteran Dragoons
4 normal Organ Guns
2 normal Culverins
2 Mortars
2 Heavy Cannons
10 normal Janissary
8 normal Hussars
8 veteran Cavalry Archers
7 normal Abus Guns
5 normal Grenadiers (no joke)
3 normal Falconets
2 Mortars
2 Great Bombards
8 normal Grenadiers + 1 Great Bombard
20 normal Crossbows
24 normal Pikemen
10 normal Pikemen + 8 normal Rodeleros
13 normal Rodeleros
7 normal Hussars
8 veteran Lancers
2 normal Falconets
2 Mortars
2 Heavy Cannons
13 normal Longbows
16 normal Musketeers
8 normal Hussars
6 normal Grenadiers
2 normal Falconets
2 Mortars
3 Rockets
24 normal Pikemen
14 veteran Skirmishers
7 veteran Dragoons
7 normal Hussars
6 veteran Cuirassiers
5 veteran Cuirassiers
3 normal Falconets
2 Mortars
2 Heavy Cannons
13 veteran Halberdiers
14 veteran Skirmishers
7 veteran Hussars
12 veteran Ruyters
10 veteran Halberdiers + 4 veteran Ruyters
5 Grenadiers
2 Falconets
2 Culverins
1 Mortar
2 Heavy Cannons
28 normal Strelets
13 veteran Halberdiers
17 normal Musketeers
8 normal Cossacks (wtf? not 10 or 12?)
8 veteran Cavalry Archers
9 veteran Oprichnicks
9 normal Grenadiers
2 normal Falconets
2 normal Culverins
2 Mortars
2 Heavy Cannons (x2)
"One wants to be loved, failing that admired, failing that feared, failing that hated and despised. One wants to instill in other people some form of emotion. The soul shudders before emptiness and wants contact, no matter the cost."