Britannia

[katank]

Actually, blitzing fast is critical as you want to get to the Romans before they reform.

Your chariot archers are powerful but are highly vulnerable to archers. Once they get archer auxilia, your chariots are toast. Their super high post-marian armor for infantry and cav will also destroy hopes of killing them through missiles.

Chosen swords can fight their early and even late legions to a standstill but you lose much of the edge in chariots.

[Craterus]

my british campaign went well to start with and i blitzed through the gaul but problems came when i (stupidly) cancelled my alliance with the julii.. they attacked and i had to withdraw back to central gaul! i opposed the romans too soon and paid the price!

[katank]

What were the army compositions? Warbands don't do very well vs. hastatis. loads of chariots can maul their cav and leave the infantry exposed to constant missile fire.

Swordsmen are also fairly low tech and powerful.

[Craterus]

chosen swordsmen, missile chariots and head hurlers are the best troops for britain! briliant i love them!