Ricordis wrote:#5 Is not fully answered.
Ok, I handle intervening models like terrain: If it obscures my model by at least 25% I get my cover save.
But the BRB says that strange thing with the gaps which puts my model in cover even if completely visible.
No 25% needed. Why am I then in need of it if there is phisically an interfering model?
=> No 25% needed in any case => Riptide behind Firewarriors get a Cover Save
But this simply seems dumb to me.
Way to "fix" this would be to imagine a model from the interfering unit standing in the gap. This sounds logically to me as the narrative would tell us the soldiers are in movement yadda yadda...
But I don't know how to convince my opponent if he doesn't share my opinion.
What rule or wording can i quote/show him?
The same ones you just referred to. If it's the rule it's the rule even if it sounds dumb. How you explain it to yourself to make sense is just some fluff-reasoning which doesn't matter at all when it comes to the rules. No 'fixing' needed. It's also not about opinions either if you want to clarify a rules question. Check the BRB and do what it says. If you don't like it house rule it.