In HTML5, I've found it removes a bit of freedom that units had in SL, such as (in many cases, but not all) the ability to hop short water distances to get to a transport, executing shortcuts with small bodies of water in between, etc.
I guess in reality this is a bit more realistic (what soldier is strong enough to jump half the English channel and land onto a transport??), but I do admit I'm a bit sad to see that part being changed.
In any case, it's still fun like it always is, just a slight change in movement capabilities.
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"For out of the ground we were taken
For the dust we are,
And to the dust we shall return"