Okay, here's what I have. I believe the logo that appears several times in the FRC Stronghold teaser video is a re-styled
Welsh Dragon, which happens to be the symbol of the
Football Association of Wales. (Note, they refer to football in the sense of what we Americans call "soccer").
Furthermore, I took the first 7 digits of the number clue to be the IP address of 93.28.49.0 which traces to the town of
Dunkirk, France. See anything familiar on their
coat of arms? Also, from this town is a football player by the name of
Robert Malm, who played in the 2006 World Cup.
Dunkirk had an interesting history through the Middle Ages, including the construction of a town wall to protect against viking raids. In the late 13th century, the citizens of Dunkirk fought in the
Battle of the Golden Spurs, after which
Guy, Count of Flanders gained "
de facto autonomy." Additionally, the Flemish townspeople laid siege upon a castle during the battle. A
map of the battle area shows similarities to scenes in the Stronghold video, including flags atop tents.
So, what do I gather from all this? Some teams will construct a wall. Others will knock it down by shooting footballs (of the American variety, because the Security Breach video said we've never seen this game piece before) at it, and autonomous mode will be different, possibly at the end. Or, if the game piece is not an American style football, it will be the
JW Hol-ee Roller, because that looks more like a soccer ball, and fits more closely with the more global style of "football" and is offered through multiple outlets in red and blue, and is durable. In fact, I think that is more likely. It was previously suggested as a game piece in
this post in 2006.
EDIT: And wouldn't ya know it, the Hol-ee Roller comes in a football shape too.
Here's your game piece guys.
sanddrag has spoken.