I can clarify what you are missing: The Landsknecht is 1/2 the price of a pikeman. That *is* breaking from the Civ 4 tradition. It's a huge advantage on a resourceless unit. As to the Panzer, it's not just a faster tank. It's also a faster tank with 60 strength (as opposed to 50), making it the strongest 'melee' in the game until modern armor appears. The Landsknecht allows you to deploy hordes of cheap, blocking/anti-mounted units, or just put the production to other units. The Panzer outclasses everything else in its time period, and even outclasses most modern units. BTW, the samurai's power is a free shock promotion (aka +20% combat on open terrain), and a increased Great General spawn rate. A very powerful unit.