The best replacement for recon is seals.

The best alternatives to recon are rated as following:
★★★★★  seals
★★★★  power armor
★★★★  navy seals
★★★★  force recon
★★★★  reba
★★★  rangers
★★★  marsoc
★★★  ozark
★★★  amino1
★★★  rancher
★★  tora
★★  navy seal
★★  spyder
★  rainbow six
★  anzo
★  seal
★  army ranger
★  call of duty
★  xtend
★  surge ii
★  deploy
★  dark matter
★  longshot
★  situational awareness
★  alpha trooper
★  sektor
★  army rangers
★  spr
★  maverick
★  spyder headlights
  recon
  combat powder
  borealis
  suzuki ozark
  bayou
  retaliator
  oblivion
  raider

Your alternative for recon is not listed? Suggest!
Speaking about recon, one probably shouldn't forget about odst.

Other search terms related to recon and their ratings are:
★★★★★ odst
★ bungie
★ halo reach
You have in mind a companion for recon and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of recon in all years. Click on graph for more.
recon
seals
power armor