Guerilla tactics would be smaller warbands affecting the war by accomplishing goals/missions away from the front or behind enemy lines. It could be anything from sabotaging a resource depot to taking over enemy artillery placements and using them on their owners. The literal definition is; So basically, as I understand it, the people who want Guerilla Warfare want EC to have stuff to do outside of the huge meatgrinder zergs. Important stuff that can significantly alter the flow of battle
There are at least a million things I would like to see in the game but I will go with two easy ones or this post. I would like the developers to find a nice organic way to split up the "zerg". While I would like to see hundreds of players fighting over a territory I think that it is important to have multiple objectives inside the territory in order to thin out the zerg and promote the importance of squad based play. My second hope for this game may be a bit of a silly one but I would really like to see Land Speeders in the game. I have just started using them in table top and have had a terrible amount of fun with them. I think it would be a fantastic vehicle to have in this game and I look forward to piloting one of these vehicles for "reals" some time.
found some Q&A http://forum.eternalcrusade.com/threads/mmorpg-com-dev-q-a.1163/ for all those who haven't found it themselves yet
