back to the original poster.
i too play vh/vh (played h/h once as england to open factions). i have not yet moved from vanilla.
i have won as hre, byzantium, moors and now doing well with poland.
key to my success is.
1. contact everyone possible early and trade map, trade rights and alliance for cash. when you are not at war your alliance is worth something when you are at war with everyone your alliance costs them so they don't want it.
2. my poland game has been aised by early on occupying not sacking and releasing prisoners. my generals got great chiv for rapid city growth and easy order maintence. also my rep went to v reliable.
3. when i was attacked i countered rabidly taking several regions quickly then threatening one more. i then exchanged ceasefire for the region under attack which they were happy to give me (have received 4 regions for ceasefire from various opponents never had this in earleir wins as rep was appaling from sack/ exterminate/ execute)
4. quick wars then resell trade rights and alliance. then someone else attacks i take a couple of quick bites at their empire and then peace. thus not yet in multifront war and so peace is easy.
5. heroic victories must be the normal outcome when in outdoor battle with odds of 2:1 against. keep their losses high and yours low.
6. attack poorly defended cities first and leave the full stack city to last as too many casulties will cost you as much as them.
7. if they have a stack that can reinforce a city (ie i square from city) then attack that one. the city defenders will come on as reinforcements. kill outside stack before reinforcements arrive then eradicate the city defendors. do not allow any to flee esp the general. then execute prisoners (the only time i ever do this). then walk into unoccupied city.
8. try to border as few factions as possible.
9 if you need a faction to attack you on vh/vh then walk armies accross their land. shorten bordere don't lengthen.
10 if you must weaken you european holdings my sending your troops to thew holy land then sell your new settlement and leave. this is not shorteneing your borders. sell to a faction who doesn't normally live in that area as then they will get involved in weird wars with factions far far away.
11 rebel armies in your regions can be killed if convenient but don't let them distract you. train on them when not at war but they are harmless compared to milan who is planning on actually attcking your towns. (well they just tried but as after war with france i bordered them i accidebtly wandered all my troops to the bordrers abd took out 3 of their four regions as soon as they declared war. (3 turns). am now clearing up the stacks they sent the other way into my territory which i ignored as my border towns have 6-8 units in them. more than enough to survive an assault.)
12 most importantly learn the strong units for your faction and use them well. if your faction is weak in an area make few of this unit type.
13 learn to use priests, spys and merchants. less unrest, open gates and more money are your rewards. keep yoyr faction heir single and diplomats talking to a princess will allow marriage alliance. some people like assasins but my view is that buildings in enemy settlements will soon be mine. why would i damage my own property. i have never killed anyone with assasin (not even tried)
14 if you don't know where an attack will come from next stacks moving towrds and into your regions are a clue.
in summary diplomacy works when you learn how to use it as do merchants and cavalry charges. also killing routers is easier than fighting them. fight morale not men
hope this helps.
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