Snipers are poorly equipped to handle to handle anything up close?

When a sniper "team" is deployed to "hunt for" a specific objective/target,stealth & concealment are of the most important.
But when used as a "force-multiplier" to infantry platoons or squads,the spotter's are armed as a grenadier's with 203 equipped M-16/M-4.
Two-man teams are norm but have worked on three man teams while serving as a 11B3V!
M21 and a 1911A1
M24 and a M9
M82A1 and a MP-5SD

Mike