Right-militant symbolism encountered in the last two months playing the Battlefield franchise of online shooters:

• One Nazi flag profile image, all colors and proportions on-model
• A wide variety of South American users and private servers with 4-letter clan tags and logos (frequently in quartered unit patch format with skulls and lightning bolts as prominent elements) that map to local paramilitaries
• A few Rising Sun flags and uyoku dantai slogans
  
• (just now) one profile tag consisting of a large silver police shield bearing an image of a modern rifle above the large numbers “88″ in blue

Left-militant symbolism:

• One profile image of a red flag with yellow hammer and sickle flapping in the wind