I certainly do not like DA:I's MP, but doing a copy-paste of ME3 MP for Andromeda wont go that well either.
They need to improve a lot or the MP will be fun for 2 weeks. All the bugs, terrible mechanics, grinding credit system and all that crap was accepted in ME3 because it was something never done before in the franchise, but if you are going to give me the same crap in Andromeda then you learned nothing.
The horde mode is not that bad, but they need to improve the whole thing in general. Remove crap randomness, add dedicated servers or improve drastically the network code (still, dedicated servers for the love of god), and maybe add one or two more game modes (we don't want to split too much the community), since that horde thingy turns boring rather quickly.